public String getCollaborationCreatorAccountId() {
        return this.collaborationCreatorAccountId;
    }
<p>
The identifier of the Amazon Web Services principal that created the collaboration. Currently only supports
Amazon Web Services account ID.
</p>

@return The identifier of the Amazon Web Services principal that created the collaboration. Currently only
        supports Amazon Web Services account ID.
aws-java-sdk-cleanrooms/src/main/java/com/amazonaws/services/cleanrooms/model/MembershipSummary.java