| 12345678910111213141516171819202122 | export type TokenBucketError = stringexport type Fail<T> = (error: T) => voidexport type Success<T> = (error: null, data: T) => voidexport type RemoveTokensCallback = Fail<TokenBucketError> | Success<number>type Interval = number | 'second' | 'sec' | 'minute' | 'min' | 'hour' | 'hr' | 'day'export declare class TokenBucket {  constructor(bucketSize: number, tokensPerInterval: number, interval: Interval, parentBucket?: TokenBucket)  removeTokens(count: number, callback: RemoveTokensCallback): void  tryRemoveTokens(count: number): boolean  drip(): boolean}export declare class RateLimiter {  constructor(tokensPerInterval: number, interval: Interval, fireImmediately?: boolean)  removeTokens(count: number, callback: RemoveTokensCallback): void  tryRemoveTokens(count: number): boolean  getTokensRemaining(): number}
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