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6 | export declare class Statistics {
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7 |
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8 | protected printFixedPrecision: number;
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9 |
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10 | samples: number;
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11 |
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12 | max: number;
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13 |
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14 | min: number;
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15 |
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16 | variance: number;
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17 |
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18 | stdev: number;
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19 |
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20 | mean: number;
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21 | |
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23 |
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24 |
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25 |
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26 | constructor(
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27 |
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28 | printFixedPrecision?: number);
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29 | /** @internal */
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30 | clone(): Statistics & this;
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31 | /**
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32 | * Update statistics with a new value in the sequence.
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33 | */
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34 | update(value: number | undefined): void;
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35 | /**
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36 | * Print the mean of the observations seen, with the precision specified in
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37 | * the constructor.
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38 | */
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39 | toString(): string;
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40 | }
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41 | export declare class ExponentiallyDecayingAverageValue {
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42 | smoothingFactor: number;
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43 | samples: number;
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44 | value: number;
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45 | constructor(smoothingFactor: number);
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46 | update(n: number): void;
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47 | toString(): number;
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48 | }
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49 | export declare function sleep(ms: number, cancel?: Promise<void>): Promise<unknown>;
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50 | export declare function streamToBuffer(s: NodeJS.ReadableStream): Promise<Buffer>;
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51 | export declare function chomp(s: string): string;
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52 | export declare const sum: (a: number[]) => number;
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53 | export declare function objectSize(obj?: {
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54 | [key: string]: string;
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55 | }): number;
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56 | export declare function computeHttpResponseBytes(headers: {
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57 | [key: string]: string;
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58 | }, opts?: {
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59 | httpHeaders: boolean;
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60 | min: number;
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61 | }): number;
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62 | export declare function hasExpired(date: string | number | undefined | null, retentionInDays: number): boolean;
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63 | export declare function roundTo100ms(n: number): number;
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64 | export declare const uuidv4Pattern = "[a-f0-9]{8}-[a-f0-9]{4}-4[a-f0-9]{3}-[89aAbB][a-f0-9]{3}-[a-f0-9]{12}";
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65 | export declare const GB: number;
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66 | export declare const MB: number;
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67 | export declare const KB: number;
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68 | export declare function f1(n: number): string;
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69 | export declare function f2(n: number): string;
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70 | export declare function keysOf<K extends string, O extends {
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71 | [key in K]: any;
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72 | }>(obj: O): Array<keyof O>;
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73 | export declare function defined<T>(arg: T | undefined | null | void): arg is T;
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74 | export declare class MaxHeap {
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75 | protected _heap: number[];
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76 | get size(): number;
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77 | clear(): void;
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78 | peekMax(): number;
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79 | insert(value: number): void;
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80 | extractMax(): number;
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81 | [Symbol.iterator](): IterableIterator<number>;
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82 | }
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83 | export declare class SmallestN<T = void> {
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84 | protected _size: number;
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85 | protected _heap: MaxHeap;
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86 | protected _map: [number, T][];
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87 | constructor(_size: number);
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88 | update(key: number, value: T): void;
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89 | protected shrink(): void;
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90 | [Symbol.iterator](): IterableIterator<[number, T]>;
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91 | entries(): () => IterableIterator<[number, T]>;
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92 | keys(): number[];
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93 | get size(): number;
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94 | clear(): void;
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95 | setSize(newSize: number): void;
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96 | }
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