Request of [MatchIntent][].
.. attribute:: session
Required. The name of the session this query is sent to.
Format:
projects/<Project ID>/locations/<Location ID>/agents/<Agent ID>/sessions/<Session ID>
or
projects/<Project ID>/locations/<Location ID>/agents/<Agent ID>/environments/<Environment ID>/sessions/<Session ID>.
If Environment ID is not specified, we assume default
'draft' environment. It's up to the API caller to choose an
appropriate Session ID. It can be a random number or
some type of session identifiers (preferably hashed). The
length of the Session ID must not exceed 36 characters.
For more information, see the sessions
guide <https://cloud.google.com/dialogflow/cx/docs/concept/session>__.