get https://api.supportbench.com/users/
Return a user count for items related to a user.
Returning list object
| Name | Description | 
|---|---|
| id | The unique id of the agent. | 
| name | The full name of the agent. | 
| parent_id | The parent id of the agent. This typically is the agent's manager. | 
| level | The hierarchy level of the agent. | 
| username | The username / email of the user. | 
