@spec add(String.t(), String.t(), NervesHubCLI.API.role(), NervesHubCLI.API.Auth.t()) ::
  {:error, any()} | {:ok, any()}

Add a user to the org with a role.

Verb: POST Path: /orgs/:org_name/users

@spec list(String.t(), NervesHubCLI.API.Auth.t()) :: {:error, any()} | {:ok, any()}

List all users for an org.

Verb: GET Path: /orgs/:org_name/users

@spec remove(String.t(), String.t(), NervesHubCLI.API.Auth.t()) ::
  {:error, any()} | {:ok, any()}

Remove a user from the org.

Verb: DELETE Path: /orgs/:org_name/users/:username

@spec update(
  String.t(),
  String.t(),
  NervesHubCLI.API.role(),
  NervesHubCLI.API.Auth.t()
) ::
  {:error, any()} | {:ok, any()}

Update an existing org user's role.

Verb: PUT Path: /orgs/:org_name/users/:username