This transformer is helpful when trying to capture the final state vector
of a circuit with many terminal measurements, as simulating the circuit
with those measurements in place would otherwise collapse the final state.
Args
circuit
The circuit to transform. It will not be modified.
context
cirq.TransformerContext storing common configurable options
for transformers. The default has deep=True, as "terminal
measurements" is ill-defined without inspecting subcircuits;
passing a context with deep=False will return an error.
Returns
A copy of the circuit, with identity or X gates in place of terminal
measurements.
Raises
ValueError
if the circuit contains non-terminal measurements, or if
the provided context hasdeep=False.