Test other versions of Ruby (2.2.8, 2.3.5, 2.4.2, 2.5.0-preview)
Test other versions of Ruby (2.2.8, 2.3.5, 2.4.2, 2.5.0-preview)

GoogleCloudPlatform/ruby-docs-samples,GoogleCloudPlatform/ruby-docs-samples,GoogleCloudPlatform/ruby-docs-samples,GoogleCloudPlatform/ruby-docs-samples