DO NOT MERGE: Fixing Entities

As per the docstring at the top of the module:

> The various ``_call_requests_*`` functions in this module are extremely simple
wrapper functions. They do not alter the arguments passed to them in any way,
nor do they do anything else such as logging. They exist soley to ease unit
testing: each one can be overridden in a unit test for mocking purposes.

You can see an example of such [here](https://github.com/omaciel/robottelo/blob/master/tests/robottelo/test_robottelo_api_client.py#L131)