feat: expose dtmf input info in the query result (#181)

- [ ] Regenerate this pull request now.

PiperOrigin-RevId: 400308975

Source-Link: googleapis/googleapis@02710fa

Source-Link: googleapis/googleapis-gen@a56bce1
Copy-Tag: eyJwIjoiLmdpdGh1Yi8uT3dsQm90LnlhbWwiLCJoIjoiYTU2YmNlMTY4NjNhOWFmMmNiZTU3YzBlZWQ3M2EwYjZlNjNiMWMwYSJ9

google/cloud/dialogflowcx_v3beta1/types/session.py

@@ -534,6 +534,9 @@ class QueryResult(proto.Message):
             If an [event][google.cloud.dialogflow.cx.v3beta1.EventInput]
             was provided as input, this field will contain the name of
             the event.
+        dtmf (google.cloud.dialogflowcx_v3beta1.types.DtmfInput):
+            If a [DTMF][DTMFInput] was provided as input, this field
+            will contain a copy of the [DTMFInput][].
         language_code (str):
             The language that was triggered during intent detection. See
             `Language
@@ -617,6 +620,7 @@ class QueryResult(proto.Message):
     trigger_intent = proto.Field(proto.STRING, number=11, oneof="query",)
     transcript = proto.Field(proto.STRING, number=12, oneof="query",)
     trigger_event = proto.Field(proto.STRING, number=14, oneof="query",)
+    dtmf = proto.Field(proto.MESSAGE, number=23, oneof="query", message="DtmfInput",)
     language_code = proto.Field(proto.STRING, number=2,)
     parameters = proto.Field(proto.MESSAGE, number=3, message=struct_pb2.Struct,)
     response_messages = proto.RepeatedField(