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Initialize 'ref' with all zeros, ref tensor should be uninitialized.
tf.contrib.framework.zero_initializer( ref, use_locking=True, name='zero_initializer' )
If already initialized, you will get ValueError. This op is intended to save memory during initialization. Args: ref: ref of the tensor need to be zero initialized. name: optional name for this operation.
|ref that initialized.|
||If ref tensor is initialized.|