+/**
+ * ev_metadata_manager_set:
+ * @uri: Uri to set data for, if @NULL, we return default value
+ * @key: Key to set uri
+ * @value: GValue struct filled up with value
+ * @ignore_last: if @TRUE, default value is ignored
+ *
+ * Retrieve value for uri in metadata database
+ *
+ * Returns: @TRUE if value was taken.
+ **/