'Internal method that gets a window of adjusted minute data for an asset
and specified date range.  Used to support the history API method for
minute bars.
Missing bars are filled with NaN.
Parameters
assets : iterable[Asset]
The assets whose data is desired.
field: string
The specific field to return.  "open", "high", "close_price", etc.
minutes_for_window: pd.DateTimeIndex
The list of minutes representing the desired window.  Each minute
is a pd.Timestamp.
Returns
A numpy array with requested values.'

def _get_minute_window_data(self, assets, field, minutes_for_window):

    return self._minute_history_loader.history(assets, minutes_for_window, field, False)
