src/google/protobuf/testdata/extdecl_field_options.textpb

# For Protobuf extension declaration test only.
# DO NOT add extension declaration to this file.
#
# proto-file: path/to/my_file.proto
# proto-message: MyMessage

declaration {
  number: 525000000
  full_name: ".protoc.extension.declaration.test"
  type: "string"
}