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