public void setPush(java.util.Collection<GitPushFilter> push) {
        if (push == null) {
            this.push = null;
            return;
        }

        this.push = new java.util.ArrayList<GitPushFilter>(push);
    }
<p>
The field where the repository event that will start the pipeline, such as pushing Git tags, is specified with
details.
</p>

@param push
       The field where the repository event that will start the pipeline, such as pushing Git tags, is specified
       with details.
aws-java-sdk-codepipeline/src/main/java/com/amazonaws/services/codepipeline/model/GitConfiguration.java