| 1 | export const isString = (x: unknown): x is string => typeof x === 'string'
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| 2 | export const isBoolean = (x: unknown): x is boolean => typeof x === 'boolean'
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| 3 | export const isFunction = (x: unknown): x is Function => typeof x === 'function'
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| 4 | export const isObject = (params: any): params is object => typeof params === 'object' && params !== null
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| 5 | export const ERROR = 'Error'
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| 6 | export const undefined = void 0
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| 7 | export const Object_setPrototypeOf = Object.setPrototypeOf
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| 8 | export const Promise_reject = (x: any) => Promise.reject(x)
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| 9 | export const Promise_resolve = <T>(x: T) => Promise.resolve(x)
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| 10 | export const isArray = Array.isArray
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| 11 | export const replayFunction = () => '() => replay()'
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