cast interface

从给定的 ABI 生成一个 Solidity 接口。

$ cast interface --help

用法：cast interface [OPTIONS] <CONTRACT>

参数：
  <CONTRACT>
          The target contract, which can be one of: - A file path to an ABI JSON
          file. - A contract identifier in the form `<path>:<contractname>` or
          just `<contractname>`. - An Ethereum address, for which the ABI will
          be fetched from Etherscan

选项：
  -n, --name <NAME>
          The name to use for the generated interface.
          
          Only relevant when retrieving the ABI from a file.

  -p, --pragma <VERSION>
          Solidity pragma version
          
          [default: ^0.8.4]

  -o, --output <PATH>
          The path to the output file.
          
          If not specified, the interface will be output to stdout.

  -j, --json
          If specified, the interface will be output as JSON rather than
          Solidity

  -e, --etherscan-api-key <KEY>
          The Etherscan (or equivalent) API key
          
          [env: ETHERSCAN_API_KEY=]

  -c, --chain <CHAIN>
          The chain name or EIP-155 chain ID
          
          [env: CHAIN=]

  -h, --help
          Print help (see a summary with '-h')