Compile to ZZ gate instead of MS for Forte backends when transpiling to native IonQ gates

[radumarg]

Use ZZ gate instead of MS when transpiling circuits to native IonQ gates for forte backends.

[codecov]

Codecov Report

Attention: Patch coverage is 88.88889% with 1 line in your changes missing coverage. Please review.

Project coverage is 98.16%. Comparing base (d589bfc) to head (6fbe497).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
cirq-ionq/cirq_ionq/ionq_native_target_gateset.py	85.71%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #6973      +/-   ##
==========================================
- Coverage   98.17%   98.16%   -0.01%     
==========================================
  Files        1085     1085              
  Lines       94672    94678       +6     
==========================================
  Hits        92942    92942              
- Misses       1730     1736       +6     

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[pavoljuhas]

LGTM, after addressing the CI issues. The patch below should do so
Thank you for the PR @radumarg !

diff --git a/cirq-ionq/cirq_ionq/ionq_native_target_gateset.py b/cirq-ionq/cirq_ionq/ionq_native_target_gateset.py
index 9c77d0ef..46679b5d 100644
--- a/cirq-ionq/cirq_ionq/ionq_native_target_gateset.py
+++ b/cirq-ionq/cirq_ionq/ionq_native_target_gateset.py
@@ -120,6 +120,9 @@ class IonqNativeGatesetBase(cirq.TwoQubitCompilationTargetGateset):
     def _hadamard(self, qubit):
         return [GPI2Gate(phi=0.25).on(qubit), GPIGate(phi=0).on(qubit)]
 
+    def _cnot(self, *qubits):
+        raise NotImplementedError()
+
     def decompose_all_to_all_connect_ccz_gate(
         self, ccz_gate: 'cirq.CCZPowGate', qubits: Tuple['cirq.Qid', ...]
     ) -> 'cirq.OP_TREE':
@@ -199,6 +202,7 @@ class AriaNativeGateset(IonqNativeGatesetBase):
             GPI2Gate(phi=-1 / 4).on(qubits[0]),
         ]
 
+
 class ForteNativeGateset(IonqNativeGatesetBase):
     """Target IonQ native gateset for compiling circuits.
 

[radumarg]

@pavoljuhas CI issues fixed!

[pavoljuhas]

NotImplemented is not callable - it is a constant with special meaning for operator methods (e.g., __eq__).
The correct thing here is to raise the NotImplementedError exception (a different thing to the NotImplemented constant).

Please see details here - https://docs.python.org/3.10/library/constants.html?highlight=notimplemented#NotImplemented

Suggested change

	return NotImplemented()
	raise NotImplementedError()

[radumarg]

@pavoljuhas there were a string of small mistakes, now it should be fine