The error code and error message sent by the server when an error occurs.

A list of extension numbers sent by the server answering all_extension_numbers_of_type request.

The type name and extension number sent by the client when requesting file_containing_extension.

Serialized FileDescriptorProto messages sent by the server answering a file_by_filename, file_containing_symbol, or file_containing_extension request.

A list of ServiceResponse sent by the server answering list_services request.

The message sent by the client when calling ServerReflectionInfo method.

The message sent by the server to answer ServerReflectionInfo method.

The information of a single service used by ListServiceResponse to answer list_services request.