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@@ -125,7 +125,7 @@ class GroupPrincipalBackend implements BackendInterface {
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* Returns the list of members for a group-principal
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* Returns the list of members for a group-principal
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*
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*
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* @param string $principal
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* @param string $principal
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- * @return string[]
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+ * @return array
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* @throws Exception
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* @throws Exception
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*/
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*/
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public function getGroupMemberSet($principal) {
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public function getGroupMemberSet($principal) {
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