hardhat
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Hardhat is an extensible developer tool that helps smart contract developers increase productivity by reliably bringing together the tools they want.
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TypeScript
/**
* All the parameters except the first one.
*/
export type ParametersExceptFirst<T> = T extends (...args: [any, ...infer P]) => any ? P : never;
/**
* All the parameters of a function, except the last one.
*/
export type ParametersExceptLast<T> = T extends (...args: [...infer P, any]) => any ? P : never;
/**
* All the parameters of a function, except the first and last ones.
*/
export type ParametersExceptFirstAndLast<T> = T extends (...args: [any, ...infer P, any]) => any ? P : never;
/**
* The last parameter of a function.
*/
export type LastParameter<T> = T extends (...args: [...infer _P, infer Last]) => any ? Last : never;
/**
* The parameters of a function.
*/
export type Params<T> = T extends (...args: infer P) => any ? P : never;
/**
* The return type of a function.
*/
export type Return<T> = T extends (...args: any[]) => infer Ret ? Ret : never;
/**
* The same type as T, but with the specified keys required.
*/
export type RequireField<T, K extends keyof T> = T & {
[P in K]-?: T[P];
};
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