I am not sure if this is a bug in cloud build, or sidekick needs to support services that have LROs but do not have the LRO mixin.

• google/devtools/cloudbuild/v1
• google/bigtable/admin/v2

As noted in #780 the code emitted for google/devtools/cloudbuild/v1 does not compile. sidekick is trying to generate the LRO helpers, since there are functions that return google.longrunning.Operation and have the right annotations:

  rpc CreateBuild(CreateBuildRequest) returns (google.longrunning.Operation) {
  ... ... ... snip snip ... ... ...
    option (google.longrunning.operation_info) = {
      response_type: "Build"
      metadata_type: "BuildOperationMetadata"
    };
  }

https://github.com/googleapis/googleapis/blob/e9a4c38a81933108eaa6ac96c7ead31e253c8c64/google/devtools/cloudbuild/v1/cloudbuild.proto#L97-L117

However, the service config does not import the mixin:

type: google.api.Service
config_version: 3
name: cloudbuild.googleapis.com
title: Cloud Build API


apis:
- name: google.devtools.cloudbuild.v1.CloudBuild

https://github.com/googleapis/googleapis/blob/e9a4c38a81933108eaa6ac96c7ead31e253c8c64/google/devtools/cloudbuild/v1/cloudbuild_v1.yaml#L1-L15

Without the mixin, there is no get_operation() function or builder defined. The generated code assumes these exist. One possible "solution" is to disable the LRO helpers if the mixin does not exist, but I am not sure the generated code would be that useful in that case.

Another solution might be to force the mixin when we find LRO-like functions.