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+## mutex
+
+thread.mutex()
+
+creates a pthread_mutex
+
+### mutex:lock
+
+mutex:lock()
+
+locks the mutex
+
+### mutex:unlock
+
+mutex:unlock()
+
+you'll never guess what this one does (unlocks the mutex)
+
+### mutex:free
+
+mutex:free()
+
+calls the __gc method