Issue adding collaborators with only email or user object

[girard-r]

Summary

The create ticket endpoint does not allow to set collaborators in a flexible way. It only allows us to do so per collaborator_ids.

    @collaborators.setter
    def collaborators(self, collaborators):
        if collaborators:
            self.collaborator_ids = [o.id for o in collaborators]
            self._collaborators = collaborators

In zendesk documentation, it is stated that:

• When creating or updating a ticket, you can set collaborators on a ticket using one of three properties: collaborator_ids, collaborators or additional_collaborators. The collaborators property provides more flexibility, as outlined below.

with example:

{
  "ticket": {
    "collaborators": [ 562, "someone@example.com", { "name": "Someone Else", "email": "else@example.com" } ]
  }
}