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Get the global step tensor.


Used in the guide:

The global step tensor must be an integer variable. We first try to find it in the collection GLOBAL_STEP, or by name global_step:0.


  • graph: The graph to find the global step in. If missing, use default graph.


The global step variable, or None if none was found.


  • TypeError: If the global step tensor has a non-integer type, or if it is not a Variable.