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Returns a copy of an operation from another Graph under a specified scope.

Given an Operation org_instance from one Graph, initializes and returns a copy of it from another Graph, under the specified scope (default "").

The copying is done recursively, so any Operation whose output is required to evaluate the org_instance, is also copied (unless already done).

Since Variable instances are copied separately, those required to evaluate org_instance must be provided as input.

org_instance An Operation from some Graph. Could be a Placeholder as well.
to_graph The Graph to copy org_instance to.
variables An iterable of Variable instances to copy org_instance to.
scope A scope for the new Variable (default "").

The copied Operation from to_graph.

TypeError If org_instance is not an Operation or Tensor.