declare namespace mimicFn { interface Options { /** Skip modifying [non-configurable properties](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/getOwnPropertyDescriptor#Description) instead of throwing an error. @default false */ readonly ignoreNonConfigurable?: boolean; } } /** Modifies the `to` function to mimic the `from` function. Returns the `to` function. `name`, `displayName`, and any other properties of `from` are copied. The `length` property is not copied. Prototype, class, and inherited properties are copied. `to.toString()` will return the same as `from.toString()` but prepended with a `Wrapped with to()` comment. @param to - Mimicking function. @param from - Function to mimic. @returns The modified `to` function. @example ``` import mimicFn = require('mimic-fn'); function foo() {} foo.unicorn = '🦄'; function wrapper() { return foo(); } console.log(wrapper.name); //=> 'wrapper' mimicFn(wrapper, foo); console.log(wrapper.name); //=> 'foo' console.log(wrapper.unicorn); //=> '🦄' ``` */ declare function mimicFn< ArgumentsType extends unknown[], ReturnType, FunctionType extends (...arguments: ArgumentsType) => ReturnType >( to: (...arguments: ArgumentsType) => ReturnType, from: FunctionType, options?: mimicFn.Options, ): FunctionType; export = mimicFn;