code: def get_account_holds(self, account_id, **kwargs):
          
          endpoint = '/accounts/{}/holds'.format(account_id)
          return self._send_paginated_message(endpoint, params=kwargs)
docs: Get holds on an account.
  
          This method returns a generator which may make multiple HTTP requests
          while iterating through it.
  
          Holds are placed on an account for active orders or
          pending withdraw requests.
  
          As an order is filled, the hold amount is updated. If an order
          is canceled, any remaining hold is removed. For a withdraw, once
          it is completed, the hold is removed.
  
          The `type` field will indicate why the hold exists. The hold
          type is 'order' for holds related to open orders and 'transfer'
          for holds related to a withdraw.
  
          The `ref` field contains the id of the order or transfer which
          created the hold.
  
          Args:
              account_id (str): Account id to get holds of.
              kwargs (dict): Additional HTTP request parameters.
  
          Returns:
              generator(list): Hold information for the account. Example::
                  [
                      {
                          "id": "82dcd140-c3c7-4507-8de4-2c529cd1a28f",
                          "account_id": "e0b3f39a-183d-453e-b754-0c13e5bab0b3",
                          "created_at": "2014-11-06T10:34:47.123456Z",
                          "updated_at": "2014-11-06T10:40:47.123456Z",
                          "amount": "4.23",
                          "type": "order",
                          "ref": "0a205de4-dd35-4370-a285-fe8fc375a273",
                      },
                      {
                      ...
                      }
                  ]