code: function proxyCustomImporters(importer, resourcePath) {
    return [].concat(importer).map(
      // eslint-disable-next-line no-shadow
      (importer) =>
        function customImporter() {
          return importer.apply(
            this,
            // eslint-disable-next-line prefer-rest-params
            Array.from(arguments).map((arg, i) =>
              i === 1 && arg === 'stdin' ? resourcePath : arg
            )
          );
        }
    );
  }
docs: Creates new custom importers that use the given `resourcePath` if libsass calls the custom importer with `prev`
  being 'stdin'.
  
  Why do we need this? We have to use the `data` option of node-sass in order to compile our sass because
  the `resourcePath` might not be an actual file on disk. When using the `data` option, libsass uses the string
  'stdin' instead of a filename.
  
  We have to fix this behavior in order to provide a consistent experience to the webpack user.
  
  @param {Function|Array<Function>} importer
  @param {string} resourcePath
  @returns {Array<Function>}