public PostLaunchActions withSsmDocuments(SsmDocument... ssmDocuments) {
        if (this.ssmDocuments == null) {
            setSsmDocuments(new java.util.ArrayList<SsmDocument>(ssmDocuments.length));
        }
        for (SsmDocument ele : ssmDocuments) {
            this.ssmDocuments.add(ele);
        }
        return this;
    }
<p>
AWS Systems Manager Documents.
</p>
<p>
<b>NOTE:</b> This method appends the values to the existing list (if any). Use
{@link #setSsmDocuments(java.util.Collection)} or {@link #withSsmDocuments(java.util.Collection)} if you want to
override the existing values.
</p>

@param ssmDocuments
       AWS Systems Manager Documents.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-mgn/src/main/java/com/amazonaws/services/mgn/model/PostLaunchActions.java