Optional Fields parsing issue.

[deep-explorer]

Hi, I am facing this issue while using protoc-gen-gotemplate.
It can't parsing proto files which has optional fields.
Is there any way to resolve this error?
Many thanks.

Here is my error.

example.proto is a proto3 file that contains optional fields, but code generator protoc-gen-gotemplate hasn't been updated to support optional fields in proto3. Please ask the owner of this code generator to support proto3 optional.--gotemplate_out: