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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:

def _parse_request(self):
        '''
        Parse the request
        '''
        self.req_method = 'unknown'
        self.req_params = {}
        self.req_rpc_version = '2.0'
        self.req_id = 0
        self.data = self.rfile.read(int(self.headers.get('content-length')))
        data_dict = json.loads(self.data)
        self.req_method = data_dict['method']
        self.req_params = decode_data(data_dict['params'])
        self.req_rpc_version = data_dict['jsonrpc']
        self.req_id = data_dict['id']