What is the use of the "weakref" module in Python?

The **weakref** module in Python is used to create weak references to objects. A weak reference is a reference to an object that doesn't increase its reference count. In other words, a weak reference allows an object to be referenced, but doesn't prevent it from being garbage collected if it is no longer needed by any other part of the program. This can be useful in situations where a reference to an object is needed, but a strong reference should not keep the object alive. For example, in a cache of frequently used objects, weak references can be used to avoid holding onto objects that are no longer being used.

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