copy
fun copy(host: String = this.host, file_by_filename: String? = this.file_by_filename, file_containing_symbol: String? = this.file_containing_symbol, file_containing_extension: ExtensionRequest? = this.file_containing_extension, all_extension_numbers_of_type: String? = this.all_extension_numbers_of_type, list_services: String? = this.list_services, unknownFields: ByteString = this.unknownFields): ServerReflectionRequest