Add boolean support to cirq_google protos (#7177)

* Add boolean support to cirq_google protos

* Add np.bool.

* Fix type issue.

Author: dstrain115

cirq-google/cirq_google/api/v2/program.proto

@@ -420,6 +420,7 @@ message ArgValue {
     RepeatedDouble double_values = 6;
     RepeatedString string_values = 7;
     tunits.Value value_with_unit = 8;
+    bool bool_value = 9;
   }
 }
 

cirq-google/cirq_google/api/v2/program_pb2.py

@@ -128,7 +128,9 @@ def arg_to_proto(
     """
     msg = v2.program_pb2.Arg() if out is None else out
 
-    if isinstance(value, FLOAT_TYPES):
+    if isinstance(value, (bool, np.bool_)):
+        msg.arg_value.bool_value = bool(value)
+    elif isinstance(value, FLOAT_TYPES):
         msg.arg_value.float_value = float(value)
     elif isinstance(value, str):
         msg.arg_value.string_value = value
@@ -274,6 +276,8 @@ def arg_from_proto(
             if math.ceil(result) == math.floor(result):
                 result = int(result)
             return result
+        if which_val == 'bool_value':
+            return bool(arg_value.bool_value)
         if which_val == 'bool_values':
             return list(arg_value.bool_values.values)
         if which_val == 'string_value':

cirq-google/cirq_google/api/v2/program_pb2.pyi

@@ -57,6 +57,7 @@ def _json_format_kwargs() -> Dict[str, bool]:
         (1.0, {'arg_value': {'float_value': 1.0}}),
         (1, {'arg_value': {'float_value': 1.0}}),
         ('abc', {'arg_value': {'string_value': 'abc'}}),
+        (True, {'arg_value': {'bool_value': True}}),
         ([True, False], {'arg_value': {'bool_values': {'values': [True, False]}}}),
         ([42.9, 3.14], {'arg_value': {'double_values': {'values': [42.9, 3.14]}}}),
         ([3, 8], {'arg_value': {'int64_values': {'values': ['3', '8']}}}),