Category returns a const string value for rpc template category.

Clean deletes all template files.

GenTemplates is the entry for command goctl template, it will create the specified category.

NewGenerator returns an instance of Generator.

ProtoTmpl returns a sample of a proto file.

RevertTemplate restores the deleted template files.

Update is used to update the template files, it will delete the existing old templates at first, and then create the latest template files.

Generator defines the environment needs of rpc service generation.