A single field of a message type.
The field cardinality.
The string value of the default value of this field. Proto2 syntax only.
The field JSON name.
The field type.
The field name.
The field number.
The index of the field type in Type.oneofs, for message or enumeration types. The first type has index 1; zero means the type is not in the list.
Type.oneofs
The protocol buffer options.
Whether to use alternative packed wire representation.
The field type URL, without the scheme, for message or enumeration types. Example: "type.googleapis.com/google.protobuf.Timestamp".
"type.googleapis.com/google.protobuf.Timestamp"