How to use the hardhat/config.subtask function in hardhat

argsAny.input.sources[file].content.includes('// @unsupported: evm') &&
        hre.network.ovm !== true
      ) {
        delete argsAny.input.sources[file]
      }
    }
    return runSuper(args)
  } else {
    return hre.run(TASK_COMPILE_SOLIDITY_RUN_SOLC, {
      ...argsAny,
      solcPath: argsAny.solcJsPath,
    })
  }
})

subtask(
  TASK_COMPILE_SOLIDITY_RUN_SOLC,
  async (args: { input: any; solcPath: string }, hre, runSuper) => {
    const ignoreRxList = hre.network.config.ignoreRxList || []
    const ignore = (filename: string) =>
      ignoreRxList.reduce(
        (ignored: boolean, rx: string | RegExp) =>
          ignored || new RegExp(rx).test(filename),
        false
      )
    if (hre.network.ovm !== true) {
      // Separate the EVM and OVM inputs.
      for (const file of Object.keys(args.input.sources)) {
        // Ignore any contract that has this tag or in ignore list
        if (
          args.input.sources[file].content.includes('// @unsupported: evm') ||
          ignore(file)

// Otherwise, write the content to the cache. We probably want to do some sort of hash
  // verification against these files but it's OK for now. The real "TODO" here is to instead
  // figure out how to properly extend and/or hack Hardat's CompilerDownloader class.
  const compilerContent = await compilerContentResponse.text()
  fs.writeFileSync(cachedCompilerPath, compilerContent)
  fs.writeFileSync(cachedCompilerVersionPath, remoteCompilerVersion)

  return cachedCompilerPath
}

// TODO: implement a more elegant fix for this.
// Hardhat on M1 Macbooks does not run TASK_COMPILE_SOLIDITY_RUN_SOLC, but instead this runs one,
// TASK_COMPILE_SOLIDITY_RUN_SOLCJS.  We reroute this task back to the solc task in the case
// of OVM compilation.
subtask(TASK_COMPILE_SOLIDITY_RUN_SOLCJS, async (args, hre, runSuper) => {
  const argsAny = args as any
  if (argsAny.real || hre.network.ovm !== true) {
    for (const file of Object.keys(argsAny.input.sources)) {
      // Ignore any contract that has this tag or in ignore list
      if (
        argsAny.input.sources[file].content.includes('// @unsupported: evm') &&
        hre.network.ovm !== true
      ) {
        delete argsAny.input.sources[file]
      }
    }
    return runSuper(args)
  } else {
    return hre.run(TASK_COMPILE_SOLIDITY_RUN_SOLC, {
      ...argsAny,
      solcPath: argsAny.solcJsPath,