1 | declare module 'child_process' {
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2 | import { BaseEncodingOptions } from 'fs';
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3 | import { EventEmitter, Abortable } from 'events';
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4 | import * as net from 'net';
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5 | import { Writable, Readable, Stream, Pipe } from 'stream';
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6 |
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7 | type Serializable = string | object | number | boolean;
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8 | type SendHandle = net.Socket | net.Server;
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9 |
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10 | interface ChildProcess extends EventEmitter {
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11 | stdin: Writable | null;
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12 | stdout: Readable | null;
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13 | stderr: Readable | null;
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14 | readonly channel?: Pipe | null;
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15 | readonly stdio: [
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16 | Writable | null,
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17 | Readable | null,
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18 | Readable | null,
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19 | Readable | Writable | null | undefined,
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20 | Readable | Writable | null | undefined
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21 | ];
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22 | readonly killed: boolean;
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23 | readonly pid: number;
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24 | readonly connected: boolean;
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25 | readonly exitCode: number | null;
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26 | readonly signalCode: NodeJS.Signals | null;
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27 | readonly spawnargs: string[];
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28 | readonly spawnfile: string;
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29 | kill(signal?: NodeJS.Signals | number): boolean;
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30 | send(message: Serializable, callback?: (error: Error | null) => void): boolean;
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31 | send(message: Serializable, sendHandle?: SendHandle, callback?: (error: Error | null) => void): boolean;
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32 | send(message: Serializable, sendHandle?: SendHandle, options?: MessageOptions, callback?: (error: Error | null) => void): boolean;
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33 | disconnect(): void;
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34 | unref(): void;
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35 | ref(): void;
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36 |
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37 | |
38 |
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39 |
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40 |
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41 |
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42 |
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43 |
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44 |
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45 |
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46 |
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47 | addListener(event: string, listener: (...args: any[]) => void): this;
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48 | addListener(event: "close", listener: (code: number | null, signal: NodeJS.Signals | null) => void): this;
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49 | addListener(event: "disconnect", listener: () => void): this;
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50 | addListener(event: "error", listener: (err: Error) => void): this;
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51 | addListener(event: "exit", listener: (code: number | null, signal: NodeJS.Signals | null) => void): this;
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52 | addListener(event: "message", listener: (message: Serializable, sendHandle: SendHandle) => void): this;
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53 | addListener(event: "spawn", listener: () => void): this;
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54 |
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55 | emit(event: string | symbol, ...args: any[]): boolean;
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56 | emit(event: "close", code: number | null, signal: NodeJS.Signals | null): boolean;
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57 | emit(event: "disconnect"): boolean;
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58 | emit(event: "error", err: Error): boolean;
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59 | emit(event: "exit", code: number | null, signal: NodeJS.Signals | null): boolean;
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60 | emit(event: "message", message: Serializable, sendHandle: SendHandle): boolean;
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61 | emit(event: "spawn", listener: () => void): boolean;
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62 |
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63 | on(event: string, listener: (...args: any[]) => void): this;
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64 | on(event: "close", listener: (code: number | null, signal: NodeJS.Signals | null) => void): this;
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65 | on(event: "disconnect", listener: () => void): this;
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66 | on(event: "error", listener: (err: Error) => void): this;
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67 | on(event: "exit", listener: (code: number | null, signal: NodeJS.Signals | null) => void): this;
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68 | on(event: "message", listener: (message: Serializable, sendHandle: SendHandle) => void): this;
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69 | on(event: "spawn", listener: () => void): this;
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70 |
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71 | once(event: string, listener: (...args: any[]) => void): this;
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72 | once(event: "close", listener: (code: number | null, signal: NodeJS.Signals | null) => void): this;
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73 | once(event: "disconnect", listener: () => void): this;
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74 | once(event: "error", listener: (err: Error) => void): this;
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75 | once(event: "exit", listener: (code: number | null, signal: NodeJS.Signals | null) => void): this;
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76 | once(event: "message", listener: (message: Serializable, sendHandle: SendHandle) => void): this;
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77 | once(event: "spawn", listener: () => void): this;
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78 |
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79 | prependListener(event: string, listener: (...args: any[]) => void): this;
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80 | prependListener(event: "close", listener: (code: number | null, signal: NodeJS.Signals | null) => void): this;
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81 | prependListener(event: "disconnect", listener: () => void): this;
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82 | prependListener(event: "error", listener: (err: Error) => void): this;
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83 | prependListener(event: "exit", listener: (code: number | null, signal: NodeJS.Signals | null) => void): this;
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84 | prependListener(event: "message", listener: (message: Serializable, sendHandle: SendHandle) => void): this;
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85 | prependListener(event: "spawn", listener: () => void): this;
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86 |
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87 | prependOnceListener(event: string, listener: (...args: any[]) => void): this;
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88 | prependOnceListener(event: "close", listener: (code: number | null, signal: NodeJS.Signals | null) => void): this;
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89 | prependOnceListener(event: "disconnect", listener: () => void): this;
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90 | prependOnceListener(event: "error", listener: (err: Error) => void): this;
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91 | prependOnceListener(event: "exit", listener: (code: number | null, signal: NodeJS.Signals | null) => void): this;
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92 | prependOnceListener(event: "message", listener: (message: Serializable, sendHandle: SendHandle) => void): this;
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93 | prependOnceListener(event: "spawn", listener: () => void): this;
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94 | }
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95 |
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96 |
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97 | interface ChildProcessWithoutNullStreams extends ChildProcess {
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98 | stdin: Writable;
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99 | stdout: Readable;
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100 | stderr: Readable;
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101 | readonly stdio: [
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102 | Writable,
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103 | Readable,
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104 | Readable,
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105 | Readable | Writable | null | undefined,
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106 | Readable | Writable | null | undefined
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107 | ];
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108 | }
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109 |
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110 |
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111 | interface ChildProcessByStdio<
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112 | I extends null | Writable,
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113 | O extends null | Readable,
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114 | E extends null | Readable,
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115 | > extends ChildProcess {
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116 | stdin: I;
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117 | stdout: O;
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118 | stderr: E;
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119 | readonly stdio: [
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120 | I,
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121 | O,
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122 | E,
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123 | Readable | Writable | null | undefined,
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124 | Readable | Writable | null | undefined
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125 | ];
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126 | }
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127 |
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128 | interface MessageOptions {
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129 | keepOpen?: boolean;
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130 | }
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131 |
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132 | type IOType = "overlapped" | "pipe" | "ignore" | "inherit";
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133 |
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134 | type StdioOptions = IOType | Array<(IOType | "ipc" | Stream | number | null | undefined)>;
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135 |
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136 | type SerializationType = 'json' | 'advanced';
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137 |
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138 | interface MessagingOptions {
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139 | |
140 |
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141 |
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142 |
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143 | serialization?: SerializationType;
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144 | }
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145 |
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146 | interface ProcessEnvOptions {
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147 | uid?: number;
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148 | gid?: number;
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149 | cwd?: string;
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150 | env?: NodeJS.ProcessEnv;
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151 | }
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152 |
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153 | interface CommonOptions extends ProcessEnvOptions {
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154 | |
155 |
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156 |
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157 | windowsHide?: boolean;
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158 | |
159 |
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160 |
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161 | timeout?: number;
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162 | }
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163 |
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164 | interface CommonSpawnOptions extends CommonOptions, MessagingOptions, Abortable {
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165 | argv0?: string;
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166 | stdio?: StdioOptions;
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167 | shell?: boolean | string;
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168 | windowsVerbatimArguments?: boolean;
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169 | }
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170 |
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171 | interface SpawnOptions extends CommonSpawnOptions {
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172 | detached?: boolean;
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173 | }
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174 |
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175 | interface SpawnOptionsWithoutStdio extends SpawnOptions {
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176 | stdio?: StdioPipeNamed | StdioPipe[];
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177 | }
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178 |
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179 | type StdioNull = 'inherit' | 'ignore' | Stream;
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180 | type StdioPipeNamed = 'pipe' | 'overlapped';
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181 | type StdioPipe = undefined | null | StdioPipeNamed;
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182 |
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183 | interface SpawnOptionsWithStdioTuple<
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184 | Stdin extends StdioNull | StdioPipe,
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185 | Stdout extends StdioNull | StdioPipe,
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186 | Stderr extends StdioNull | StdioPipe,
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187 | > extends SpawnOptions {
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188 | stdio: [Stdin, Stdout, Stderr];
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189 | }
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190 |
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191 |
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192 | function spawn(command: string, options?: SpawnOptionsWithoutStdio): ChildProcessWithoutNullStreams;
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193 |
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194 | function spawn(
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195 | command: string,
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196 | options: SpawnOptionsWithStdioTuple<StdioPipe, StdioPipe, StdioPipe>,
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197 | ): ChildProcessByStdio<Writable, Readable, Readable>;
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198 | function spawn(
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199 | command: string,
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200 | options: SpawnOptionsWithStdioTuple<StdioPipe, StdioPipe, StdioNull>,
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201 | ): ChildProcessByStdio<Writable, Readable, null>;
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202 | function spawn(
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203 | command: string,
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204 | options: SpawnOptionsWithStdioTuple<StdioPipe, StdioNull, StdioPipe>,
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205 | ): ChildProcessByStdio<Writable, null, Readable>;
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206 | function spawn(
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207 | command: string,
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208 | options: SpawnOptionsWithStdioTuple<StdioNull, StdioPipe, StdioPipe>,
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209 | ): ChildProcessByStdio<null, Readable, Readable>;
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210 | function spawn(
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211 | command: string,
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212 | options: SpawnOptionsWithStdioTuple<StdioPipe, StdioNull, StdioNull>,
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213 | ): ChildProcessByStdio<Writable, null, null>;
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214 | function spawn(
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215 | command: string,
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216 | options: SpawnOptionsWithStdioTuple<StdioNull, StdioPipe, StdioNull>,
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217 | ): ChildProcessByStdio<null, Readable, null>;
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218 | function spawn(
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219 | command: string,
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220 | options: SpawnOptionsWithStdioTuple<StdioNull, StdioNull, StdioPipe>,
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221 | ): ChildProcessByStdio<null, null, Readable>;
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222 | function spawn(
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223 | command: string,
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224 | options: SpawnOptionsWithStdioTuple<StdioNull, StdioNull, StdioNull>,
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225 | ): ChildProcessByStdio<null, null, null>;
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226 |
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227 | function spawn(command: string, options: SpawnOptions): ChildProcess;
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228 |
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229 |
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230 | function spawn(command: string, args?: ReadonlyArray<string>, options?: SpawnOptionsWithoutStdio): ChildProcessWithoutNullStreams;
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231 |
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232 | function spawn(
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233 | command: string,
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234 | args: ReadonlyArray<string>,
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235 | options: SpawnOptionsWithStdioTuple<StdioPipe, StdioPipe, StdioPipe>,
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236 | ): ChildProcessByStdio<Writable, Readable, Readable>;
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237 | function spawn(
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238 | command: string,
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239 | args: ReadonlyArray<string>,
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240 | options: SpawnOptionsWithStdioTuple<StdioPipe, StdioPipe, StdioNull>,
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241 | ): ChildProcessByStdio<Writable, Readable, null>;
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242 | function spawn(
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243 | command: string,
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244 | args: ReadonlyArray<string>,
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245 | options: SpawnOptionsWithStdioTuple<StdioPipe, StdioNull, StdioPipe>,
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246 | ): ChildProcessByStdio<Writable, null, Readable>;
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247 | function spawn(
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248 | command: string,
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249 | args: ReadonlyArray<string>,
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250 | options: SpawnOptionsWithStdioTuple<StdioNull, StdioPipe, StdioPipe>,
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251 | ): ChildProcessByStdio<null, Readable, Readable>;
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252 | function spawn(
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253 | command: string,
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254 | args: ReadonlyArray<string>,
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255 | options: SpawnOptionsWithStdioTuple<StdioPipe, StdioNull, StdioNull>,
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256 | ): ChildProcessByStdio<Writable, null, null>;
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257 | function spawn(
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258 | command: string,
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259 | args: ReadonlyArray<string>,
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260 | options: SpawnOptionsWithStdioTuple<StdioNull, StdioPipe, StdioNull>,
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261 | ): ChildProcessByStdio<null, Readable, null>;
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262 | function spawn(
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263 | command: string,
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264 | args: ReadonlyArray<string>,
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265 | options: SpawnOptionsWithStdioTuple<StdioNull, StdioNull, StdioPipe>,
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266 | ): ChildProcessByStdio<null, null, Readable>;
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267 | function spawn(
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268 | command: string,
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269 | args: ReadonlyArray<string>,
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270 | options: SpawnOptionsWithStdioTuple<StdioNull, StdioNull, StdioNull>,
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271 | ): ChildProcessByStdio<null, null, null>;
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272 |
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273 | function spawn(command: string, args: ReadonlyArray<string>, options: SpawnOptions): ChildProcess;
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274 |
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275 | interface ExecOptions extends CommonOptions {
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276 | shell?: string;
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277 | maxBuffer?: number;
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278 | killSignal?: NodeJS.Signals | number;
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279 | }
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280 |
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281 | interface ExecOptionsWithStringEncoding extends ExecOptions {
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282 | encoding: BufferEncoding;
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283 | }
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284 |
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285 | interface ExecOptionsWithBufferEncoding extends ExecOptions {
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286 | encoding: BufferEncoding | null;
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287 | }
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288 |
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289 | interface ExecException extends Error {
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290 | cmd?: string;
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291 | killed?: boolean;
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292 | code?: number;
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293 | signal?: NodeJS.Signals;
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294 | }
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295 |
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296 |
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297 | function exec(command: string, callback?: (error: ExecException | null, stdout: string, stderr: string) => void): ChildProcess;
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298 |
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299 |
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300 | function exec(command: string, options: { encoding: "buffer" | null } & ExecOptions, callback?: (error: ExecException | null, stdout: Buffer, stderr: Buffer) => void): ChildProcess;
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301 |
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302 |
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303 | function exec(command: string, options: { encoding: BufferEncoding } & ExecOptions, callback?: (error: ExecException | null, stdout: string, stderr: string) => void): ChildProcess;
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304 |
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305 |
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306 |
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307 | function exec(
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308 | command: string,
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309 | options: { encoding: BufferEncoding } & ExecOptions,
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310 | callback?: (error: ExecException | null, stdout: string | Buffer, stderr: string | Buffer) => void,
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311 | ): ChildProcess;
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312 |
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313 |
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314 | function exec(command: string, options: ExecOptions, callback?: (error: ExecException | null, stdout: string, stderr: string) => void): ChildProcess;
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315 |
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316 |
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317 | function exec(
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318 | command: string,
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319 | options: (BaseEncodingOptions & ExecOptions) | undefined | null,
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320 | callback?: (error: ExecException | null, stdout: string | Buffer, stderr: string | Buffer) => void,
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321 | ): ChildProcess;
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322 |
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323 | interface PromiseWithChild<T> extends Promise<T> {
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324 | child: ChildProcess;
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325 | }
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326 |
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327 |
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328 | namespace exec {
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329 | function __promisify__(command: string): PromiseWithChild<{ stdout: string, stderr: string }>;
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330 | function __promisify__(command: string, options: { encoding: "buffer" | null } & ExecOptions): PromiseWithChild<{ stdout: Buffer, stderr: Buffer }>;
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331 | function __promisify__(command: string, options: { encoding: BufferEncoding } & ExecOptions): PromiseWithChild<{ stdout: string, stderr: string }>;
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332 | function __promisify__(command: string, options: ExecOptions): PromiseWithChild<{ stdout: string, stderr: string }>;
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333 | function __promisify__(command: string, options?: (BaseEncodingOptions & ExecOptions) | null): PromiseWithChild<{ stdout: string | Buffer, stderr: string | Buffer }>;
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334 | }
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335 |
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336 | interface ExecFileOptions extends CommonOptions, Abortable {
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337 | maxBuffer?: number;
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338 | killSignal?: NodeJS.Signals | number;
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339 | windowsVerbatimArguments?: boolean;
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340 | shell?: boolean | string;
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341 | signal?: AbortSignal;
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342 | }
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343 | interface ExecFileOptionsWithStringEncoding extends ExecFileOptions {
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344 | encoding: BufferEncoding;
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345 | }
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346 | interface ExecFileOptionsWithBufferEncoding extends ExecFileOptions {
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347 | encoding: 'buffer' | null;
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348 | }
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349 | interface ExecFileOptionsWithOtherEncoding extends ExecFileOptions {
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350 | encoding: BufferEncoding;
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351 | }
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352 | type ExecFileException = ExecException & NodeJS.ErrnoException;
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353 |
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354 | function execFile(file: string): ChildProcess;
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355 | function execFile(file: string, options: (BaseEncodingOptions & ExecFileOptions) | undefined | null): ChildProcess;
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356 | function execFile(file: string, args?: ReadonlyArray<string> | null): ChildProcess;
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357 | function execFile(file: string, args: ReadonlyArray<string> | undefined | null, options: (BaseEncodingOptions & ExecFileOptions) | undefined | null): ChildProcess;
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358 |
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359 |
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360 | function execFile(file: string, callback: (error: ExecFileException | null, stdout: string, stderr: string) => void): ChildProcess;
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361 | function execFile(file: string, args: ReadonlyArray<string> | undefined | null, callback: (error: ExecFileException | null, stdout: string, stderr: string) => void): ChildProcess;
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362 |
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363 |
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364 | function execFile(file: string, options: ExecFileOptionsWithBufferEncoding, callback: (error: ExecFileException | null, stdout: Buffer, stderr: Buffer) => void): ChildProcess;
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365 | function execFile(
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366 | file: string,
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367 | args: ReadonlyArray<string> | undefined | null,
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368 | options: ExecFileOptionsWithBufferEncoding,
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369 | callback: (error: ExecFileException | null, stdout: Buffer, stderr: Buffer) => void,
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370 | ): ChildProcess;
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371 |
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372 |
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373 | function execFile(file: string, options: ExecFileOptionsWithStringEncoding, callback: (error: ExecFileException | null, stdout: string, stderr: string) => void): ChildProcess;
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374 | function execFile(
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375 | file: string,
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376 | args: ReadonlyArray<string> | undefined | null,
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377 | options: ExecFileOptionsWithStringEncoding,
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378 | callback: (error: ExecFileException | null, stdout: string, stderr: string) => void,
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379 | ): ChildProcess;
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380 |
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381 |
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382 |
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383 | function execFile(
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384 | file: string,
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385 | options: ExecFileOptionsWithOtherEncoding,
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386 | callback: (error: ExecFileException | null, stdout: string | Buffer, stderr: string | Buffer) => void,
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387 | ): ChildProcess;
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388 | function execFile(
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389 | file: string,
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390 | args: ReadonlyArray<string> | undefined | null,
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391 | options: ExecFileOptionsWithOtherEncoding,
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392 | callback: (error: ExecFileException | null, stdout: string | Buffer, stderr: string | Buffer) => void,
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393 | ): ChildProcess;
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394 |
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395 |
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396 | function execFile(file: string, options: ExecFileOptions, callback: (error: ExecFileException | null, stdout: string, stderr: string) => void): ChildProcess;
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397 | function execFile(
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398 | file: string,
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399 | args: ReadonlyArray<string> | undefined | null,
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400 | options: ExecFileOptions,
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401 | callback: (error: ExecFileException | null, stdout: string, stderr: string) => void
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402 | ): ChildProcess;
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403 |
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404 |
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405 | function execFile(
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406 | file: string,
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407 | options: (BaseEncodingOptions & ExecFileOptions) | undefined | null,
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408 | callback: ((error: ExecFileException | null, stdout: string | Buffer, stderr: string | Buffer) => void) | undefined | null,
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409 | ): ChildProcess;
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410 | function execFile(
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411 | file: string,
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412 | args: ReadonlyArray<string> | undefined | null,
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413 | options: (BaseEncodingOptions & ExecFileOptions) | undefined | null,
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414 | callback: ((error: ExecFileException | null, stdout: string | Buffer, stderr: string | Buffer) => void) | undefined | null,
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415 | ): ChildProcess;
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416 |
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417 |
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418 | namespace execFile {
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419 | function __promisify__(file: string): PromiseWithChild<{ stdout: string, stderr: string }>;
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420 | function __promisify__(file: string, args: ReadonlyArray<string> | undefined | null): PromiseWithChild<{ stdout: string, stderr: string }>;
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421 | function __promisify__(file: string, options: ExecFileOptionsWithBufferEncoding): PromiseWithChild<{ stdout: Buffer, stderr: Buffer }>;
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422 | function __promisify__(file: string, args: ReadonlyArray<string> | undefined | null, options: ExecFileOptionsWithBufferEncoding): PromiseWithChild<{ stdout: Buffer, stderr: Buffer }>;
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423 | function __promisify__(file: string, options: ExecFileOptionsWithStringEncoding): PromiseWithChild<{ stdout: string, stderr: string }>;
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424 | function __promisify__(file: string, args: ReadonlyArray<string> | undefined | null, options: ExecFileOptionsWithStringEncoding): PromiseWithChild<{ stdout: string, stderr: string }>;
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425 | function __promisify__(file: string, options: ExecFileOptionsWithOtherEncoding): PromiseWithChild<{ stdout: string | Buffer, stderr: string | Buffer }>;
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426 | function __promisify__(
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427 | file: string,
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428 | args: ReadonlyArray<string> | undefined | null,
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429 | options: ExecFileOptionsWithOtherEncoding,
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430 | ): PromiseWithChild<{ stdout: string | Buffer, stderr: string | Buffer }>;
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431 | function __promisify__(file: string, options: ExecFileOptions): PromiseWithChild<{ stdout: string, stderr: string }>;
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432 | function __promisify__(file: string, args: ReadonlyArray<string> | undefined | null, options: ExecFileOptions): PromiseWithChild<{ stdout: string, stderr: string }>;
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433 | function __promisify__(file: string, options: (BaseEncodingOptions & ExecFileOptions) | undefined | null): PromiseWithChild<{ stdout: string | Buffer, stderr: string | Buffer }>;
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434 | function __promisify__(
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435 | file: string,
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436 | args: ReadonlyArray<string> | undefined | null,
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437 | options: (BaseEncodingOptions & ExecFileOptions) | undefined | null,
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438 | ): PromiseWithChild<{ stdout: string | Buffer, stderr: string | Buffer }>;
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439 | }
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440 |
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441 | interface ForkOptions extends ProcessEnvOptions, MessagingOptions, Abortable {
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442 | execPath?: string;
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443 | execArgv?: string[];
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444 | silent?: boolean;
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445 | stdio?: StdioOptions;
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446 | detached?: boolean;
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447 | windowsVerbatimArguments?: boolean;
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448 | }
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449 | function fork(modulePath: string, options?: ForkOptions): ChildProcess;
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450 | function fork(modulePath: string, args?: ReadonlyArray<string>, options?: ForkOptions): ChildProcess;
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451 |
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452 | interface SpawnSyncOptions extends CommonSpawnOptions {
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453 | input?: string | NodeJS.ArrayBufferView;
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454 | killSignal?: NodeJS.Signals | number;
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455 | maxBuffer?: number;
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456 | encoding?: BufferEncoding | 'buffer' | null;
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457 | }
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458 | interface SpawnSyncOptionsWithStringEncoding extends SpawnSyncOptions {
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459 | encoding: BufferEncoding;
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460 | }
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461 | interface SpawnSyncOptionsWithBufferEncoding extends SpawnSyncOptions {
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462 | encoding?: 'buffer' | null;
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463 | }
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464 | interface SpawnSyncReturns<T> {
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465 | pid: number;
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466 | output: string[];
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467 | stdout: T;
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468 | stderr: T;
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469 | status: number | null;
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470 | signal: NodeJS.Signals | null;
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471 | error?: Error;
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472 | }
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473 | function spawnSync(command: string): SpawnSyncReturns<Buffer>;
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474 | function spawnSync(command: string, options?: SpawnSyncOptionsWithStringEncoding): SpawnSyncReturns<string>;
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475 | function spawnSync(command: string, options?: SpawnSyncOptionsWithBufferEncoding): SpawnSyncReturns<Buffer>;
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476 | function spawnSync(command: string, options?: SpawnSyncOptions): SpawnSyncReturns<Buffer>;
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477 | function spawnSync(command: string, args?: ReadonlyArray<string>, options?: SpawnSyncOptionsWithStringEncoding): SpawnSyncReturns<string>;
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478 | function spawnSync(command: string, args?: ReadonlyArray<string>, options?: SpawnSyncOptionsWithBufferEncoding): SpawnSyncReturns<Buffer>;
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479 | function spawnSync(command: string, args?: ReadonlyArray<string>, options?: SpawnSyncOptions): SpawnSyncReturns<Buffer>;
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480 |
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481 | interface ExecSyncOptions extends CommonOptions {
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482 | input?: string | Uint8Array;
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483 | stdio?: StdioOptions;
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484 | shell?: string;
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485 | killSignal?: NodeJS.Signals | number;
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486 | maxBuffer?: number;
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487 | encoding?: BufferEncoding | 'buffer' | null;
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488 | }
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489 | interface ExecSyncOptionsWithStringEncoding extends ExecSyncOptions {
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490 | encoding: BufferEncoding;
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491 | }
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492 | interface ExecSyncOptionsWithBufferEncoding extends ExecSyncOptions {
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493 | encoding?: 'buffer' | null;
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494 | }
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495 | function execSync(command: string): Buffer;
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496 | function execSync(command: string, options?: ExecSyncOptionsWithStringEncoding): string;
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497 | function execSync(command: string, options?: ExecSyncOptionsWithBufferEncoding): Buffer;
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498 | function execSync(command: string, options?: ExecSyncOptions): Buffer;
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499 |
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500 | interface ExecFileSyncOptions extends CommonOptions {
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501 | input?: string | NodeJS.ArrayBufferView;
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502 | stdio?: StdioOptions;
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503 | killSignal?: NodeJS.Signals | number;
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504 | maxBuffer?: number;
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505 | encoding?: BufferEncoding;
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506 | shell?: boolean | string;
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507 | }
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508 | interface ExecFileSyncOptionsWithStringEncoding extends ExecFileSyncOptions {
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509 | encoding: BufferEncoding;
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510 | }
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511 | interface ExecFileSyncOptionsWithBufferEncoding extends ExecFileSyncOptions {
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512 | encoding: BufferEncoding;
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513 | }
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514 | function execFileSync(command: string): Buffer;
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515 | function execFileSync(command: string, options?: ExecFileSyncOptionsWithStringEncoding): string;
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516 | function execFileSync(command: string, options?: ExecFileSyncOptionsWithBufferEncoding): Buffer;
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517 | function execFileSync(command: string, options?: ExecFileSyncOptions): Buffer;
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518 | function execFileSync(command: string, args?: ReadonlyArray<string>, options?: ExecFileSyncOptionsWithStringEncoding): string;
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519 | function execFileSync(command: string, args?: ReadonlyArray<string>, options?: ExecFileSyncOptionsWithBufferEncoding): Buffer;
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520 | function execFileSync(command: string, args?: ReadonlyArray<string>, options?: ExecFileSyncOptions): Buffer;
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521 | }
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