https://docs.cloud.google.com/php/docs/reference/cloud-compute/latest/V1.WafExpressionSetExpression
Compute V1 Client - Class WafExpressionSetExpression (2.9.0) | PHP client libraries | Google Cloud...
https://docs.cloud.google.com/nodejs/docs/reference/compute/latest/compute/protos.google.cloud.compute.v1.wafexpressionsetexpression
Class protos.google.cloud.compute.v1.WafExpressionSetExpression (6.11.0) | Node.js client libraries...