+/**
+ * modest_mail_operation_queue_num_elements:
+ * @op_queue: a #ModestMailOperationQueue
+ *
+ * Gets the numeber of elements stored in #ModestMailOperationQueue.
+ **/
+guint
+modest_mail_operation_queue_num_elements (ModestMailOperationQueue *self);
+
+/**
+ * modest_mail_operation_queue_cancel:
+ * @op_queue: a #ModestMailOperationQueue
+ * @mail_op: the #ModestMailOperation that will be canceled
+ *
+ * Cancels a #ModestMailOperation if it's not finished and removes it
+ * from the queue
+ **/