code: @BetaApi
    public final Operation insertTargetPool(ProjectRegionName region, TargetPool targetPoolResource) {
  
      InsertTargetPoolHttpRequest request =
          InsertTargetPoolHttpRequest.newBuilder()
              .setRegion(region == null ? null : region.toString())
              .setTargetPoolResource(targetPoolResource)
              .build();
      return insertTargetPool(request);
    }
docs: Creates a target pool in the specified project and region using the data included in the
  request.
  
  <p>Sample code:
  
  <pre><code>
  try (TargetPoolClient targetPoolClient = TargetPoolClient.create()) {
  ProjectRegionName region = ProjectRegionName.of("[PROJECT]", "[REGION]");
  TargetPool targetPoolResource = TargetPool.newBuilder().build();
  Operation response = targetPoolClient.insertTargetPool(region, targetPoolResource);
  }
  </code></pre>
  
  @param region Name of the region scoping this request.
  @param targetPoolResource A TargetPool resource. This resource defines a pool of instances, an
  associated HttpHealthCheck resource, and the fallback target pool. (== resource_for
  beta.targetPools ==) (== resource_for v1.targetPools ==)
  @throws com.google.api.gax.rpc.ApiException if the remote call fails