code: def coinbase_withdraw(self, amount, currency, coinbase_account_id):
          
          params = {'amount': amount,
                    'currency': currency,
                    'coinbase_account_id': coinbase_account_id}
          return self._send_message('post', '/withdrawals/coinbase-account',
                                    data=json.dumps(params))
docs: Withdraw funds to a coinbase account.
  
          You can move funds between your Coinbase accounts and your cbpro
          trading accounts within your daily limits. Moving funds between
          Coinbase and cbpro is instant and free.
  
          See AuthenticatedClient.get_coinbase_accounts() to receive
          information regarding your coinbase_accounts.
  
          Args:
              amount (Decimal): The amount to withdraw.
              currency (str): The type of currency (eg. 'BTC')
              coinbase_account_id (str): ID of the coinbase account.
  
          Returns:
              dict: Information about the deposit. Example::
                  {
                      "id":"593533d2-ff31-46e0-b22e-ca754147a96a",
                      "amount":"10.00",
                      "currency": "BTC",
                  }