public void setTypeVersionSummaries(java.util.Collection<TypeVersionSummary> typeVersionSummaries) {
        if (typeVersionSummaries == null) {
            this.typeVersionSummaries = null;
            return;
        }

        this.typeVersionSummaries = new com.amazonaws.internal.SdkInternalList<TypeVersionSummary>(typeVersionSummaries);
    }
<p>
A list of <code>TypeVersionSummary</code> structures that contain information about the specified extension's
versions.
</p>

@param typeVersionSummaries
       A list of <code>TypeVersionSummary</code> structures that contain information about the specified
       extension's versions.
aws-java-sdk-cloudformation/src/main/java/com/amazonaws/services/cloudformation/model/ListTypeVersionsResult.java