tf.compat.v1.get_default_session

Returns the default session for the current thread.

tf.compat.v1.get_default_session()

The returned Session will be the innermost session on which a Session or Session.as_default() context has been entered.

Note: The default session is a property of the current thread. If you create a new thread, and wish to use the default session in that thread, you must explicitly add a with sess.as_default(): in that thread's function.

Returns
The default Session being used in the current thread.