def from_pennylane(tape: QuantumTape) -> Circuit:
"""Returns a Mitiq circuit equivalent to the input QuantumTape.
Args:
tape: Pennylane QuantumTape to convert to a Mitiq circuit.
Returns:
Mitiq circuit representation equivalent to the input QuantumTape.
"""
try:
wires = sorted(tape.wires)
except TypeError:
raise UnsupportedQuantumTapeError(
f"The wires of the tape must be sortable, but could not sort "
f"{tape.wires}.")
for i in range(len(wires)):
if wires[i] != i:
raise UnsupportedQuantumTapeError(
"The wire labels of the tape must contiguously pack 0 "
"to n-1, for n wires.")
if len(tape.measurements) > 0:
raise UnsupportedQuantumTapeError(
"Measurements are not supported on the input tape. "
"They should be subsequently added by the executor.")
tape = tape.expand(stop_at=lambda obj: obj.name in SUPPORTED)
qasm = tape.to_openqasm(rotations=False, wires=wires, measure_all=False)
return cirq_from_qasm(qasm)
