human
Solve the following python programming problem given the following code:
@ patch ('jumpgate.common.hooks.auth_token.identity') 
def test_valid_auth(self, identity) : 
    req = MagicMock () 
    req.headers = { 
        'X-AUTH-TOKEN' : 'AUTHTOK', 
} 
    req.method = 'GET' 
    req.path = '/v2/servers' 
    req.env = { 
        'tenant_id' : 'public', 
} 
    resp = MagicMock () 
    def mock_validate(tok, tenant_id = None) : 
        self.assertEqual ('AUTHTOK', tok) 
        self.assertEqual ('public', tenant_id) 
class MockIdDriver (object) : 
        def token_from_id(self, tok) : 
            return 'MYTOKEN' 
identity.validate_token_id = mock_validate 
    identity.token_id_driver.return_value = MockIdDriver () 
    validate_token (identity, resp, { 
        
}) 
    self.assertEqual (req.env.get ('auth'), 'MYTOKEN') 

    
    

    Fix the buggy line: validate_token (identity, resp, {
assistant
#Here is Python program to fix the buggy line: validate_token (identity, resp, {
.

validate_token (req, resp, {