code: func Base64Decode(str cty.Value) (cty.Value, error) {
  	return Base64DecodeFunc.Call([]cty.Value{str})
  }
docs: // Base64Decode decodes a string containing a base64 sequence.
  //
  // Terraform uses the "standard" Base64 alphabet as defined in RFC 4648 section 4.
  //
  // Strings in the Terraform language are sequences of unicode characters rather
  // than bytes, so this function will also interpret the resulting bytes as
  // UTF-8. If the bytes after Base64 decoding are _not_ valid UTF-8, this function
  // produces an error.