Definition of the experiment.
Attributes:
condition (str):
The condition defines which subset of sessions are selected
for this experiment. If not specified, all sessions are
eligible. E.g. "query_input.language_code=en" See the
conditions
reference <https://cloud.google.com/dialogflow/cx/docs/reference/condition>__.
version_variants (google.cloud.dialogflowcx_v3beta1.types.VersionVariants):
The flow versions as the variants of this
experiment.