public DocumentRequires withVersionName(String versionName) {
        setVersionName(versionName);
        return this;
    }
<p>
An optional field specifying the version of the artifact associated with the document. For example, 12.6. This
value is unique across all versions of a document, and can't be changed.
</p>

@param versionName
       An optional field specifying the version of the artifact associated with the document. For example, 12.6.
       This value is unique across all versions of a document, and can't be changed.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-ssm/src/main/java/com/amazonaws/services/simplesystemsmanagement/model/DocumentRequires.java