How to remove the prefix 'UserService_' of operationId?

When I use `protoc --openapi_out=docs -Iidl -Ithird_party idl/hello/hello.proto` to generate openapi.yaml,
How to remove the prefix 'UserService_' of operationId?

Does it have a global strategy param to remove it?

post:
tags:
- UserService
operationId: UserService_CreateUser
requestBody:
content:
application/json:
schema:
$ref: '#/components/schemas/CreateUserReq'
required: true

Clould the generator add param to remove 'XXXService_' prefix?

Start with the protoc command in the issue and inspect the OpenAPI generator path that produces operationId in openapi.yaml from idl/hello/hello.proto. Determine how generator options are handled, then verify that a global option can omit the UserService_ or XXXService_ prefix while preserving the generated operationId values.

Written by the indexing model from the issue text.