def METHOD_NAME(self):
    """
    by default, there should be no restriction to show an token
    """
    # all policies are deleted before
    serial = self.enroll_token()
    params = {"serial": serial}
    response = self.make_admin_request("show", params=params)
    assert serial in response, response
    # set open policy without restrictions
    self.create_admin_policy()
    params = {"serial": serial}
    response = self.make_admin_request("show", params=params)
    assert serial in response, response
    # set policy with explicit show action and wildcard action
    policy_def = {"action": "show, *"}
    self.create_admin_policy(policy_def=policy_def)
    params = {"serial": serial}
    response = self.make_admin_request("show", params=params)
    assert serial in response, response
    # set policy with not specified realm and wildcard action
    policy_def = {"action": "*", "realm": "unspecified_realm"}
    self.create_admin_policy(policy_def=policy_def)
    params = {"serial": serial}
    response = self.make_admin_request("show", params=params)
    assert serial not in response, response
    # set policy with not specified realm and wildcard realm and
    # dedicated action
    policy_def = {"action": "show", "realm": "unspecified_realm, *"}
    self.create_admin_policy(policy_def=policy_def)
    params = {"serial": serial}
    response = self.make_admin_request("show", params=params)
    assert serial in response, response
    return