There is no Groovy explicit support for the AWS code pipeline, however Job DSL plugin manages to generate dynamically some from Java,

https://<<JENKINS_URL>>/plugin/job-dsl/api-viewer/index.html#plugin/aws-codepipeline

The generated API documentation is only for "awsCodePipelineSCM". It however does not generate any documentation for "awsCodePipelinePublisher".  This makes the plugin unusable via Groovy DSL.

I appreciate if you can share even a work around for this.