The response message for a webhook call. This response is validated
by the Dialogflow server. If validation fails, an error will be
returned in the [QueryResult.diagnostic_info][google.cloud.dialogflow.
v2beta1.QueryResult.diagnostic_info] field. Setting JSON fields to an
empty value with the wrong type is a common error. To avoid this
error: - Use "" for empty strings - Use {} or null for
empty objects - Use [] or null for empty arrays For more
information, see the Protocol Buffers Language Guide
<https://developers.google.com/protocol-buffers/docs/proto3#json>__.
Optional. The rich response messages intended for the end- user. When provided, Dialogflow uses this field to populate [Q ueryResult.fulfillment_messages][google.cloud.dialogflow.v2bet a1.QueryResult.fulfillment_messages] sent to the integration or API caller.
Optional. This field can be used to pass custom data from your
webhook to the integration or API caller. Arbitrary JSON
objects are supported. When provided, Dialogflow uses this
field to populate [QueryResult.webhook_payload][google.cloud.d
ialogflow.v2beta1.QueryResult.webhook_payload] sent to the
integration or API caller. This field is also used by the
Google Assistant integration
<https://cloud.google.com/dialogflow/docs/integrations/aog>
for rich response messages. See the format definition at
Google Assistant Dialogflow webhook format <https://developer
s.google.com/assistant/actions/build/json/dialogflow-webhook-
json>
Optional. Invokes the supplied events. When this field is set,
Dialogflow ignores the fulfillment_text,
fulfillment_messages, and payload fields.
Optional. Additional session entity types to replace or extend
developer entity types with. The entity synonyms apply to all
languages and persist for the session. Setting this data from
a webhook overwrites the session entity types that have been
set using detectIntent, streamingDetectIntent or [Sess
ionEntityType][google.cloud.dialogflow.v2beta1.SessionEntityTy
pe] management methods.