<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def request(self, path, api='public', method='GET', params={}, headers=None, body=None):
 """Exchange.request is the entry point for all generated methods"""

        return self.fetch2(path, api, method, params, headers, body)