DeduceGenPkgName figures out the go package name to use for generated code.

GetFieldRequired is field required? eg.

GetFormOrJSONName get name from form tag, then json tag then original name.

GetHTTPInfo http info of method.

GetJSONFieldName get name from gogoproto.jsontag else the original name.

IsMap is protocol buffer map.

IsRepeated Is this field repeated?.

IsScalar Is this field a scalar numeric type?.

ParseBMMethod parse BMMethodDescriptor form method descriptor proto.

HTTPInfo http info for method.