MutableSequence[str]
Required. The list of names of the contacts to send a test
message to. Format:
organizations/{organization_id}/contacts/{contact_id},
folders/{folder_id}/contacts/{contact_id} or
projects/{project_id}/contacts/{contact_id}
resource
str
Required. The name of the resource to send the test message
for. All contacts must either be set directly on this
resource or inherited from another resource that is an
ancestor of this one. Format:
organizations/{organization_id}, folders/{folder_id} or
projects/{project_id}