def _get_filter_field(field_name, field_value):
    """ Return field to apply into filter, if an array then use a range, otherwise look for a term match """
    filter_field = None
    if isinstance(field_value, ValueRange):
        range_values = {}
        if field_value.lower:
            range_values.update({"gte": field_value.lower_string})
        if field_value.upper:
            range_values.update({"lte": field_value.upper_string})
        filter_field = {
            "range": {
                field_name: range_values
            }
        }
    elif _is_iterable(field_value):
        filter_field = {
            "terms": {
                field_name: field_value
            }
        }
    else:
        filter_field = {
            "term": {
                field_name: field_value
            }
        }
    return filter_field
def _get_filter_field(field_name, field_value):
    """ Return field to apply into filter, if an array then use a range, otherwise look for a term match """
    filter_field = None
    if isinstance(field_value, ValueRange):
        range_values = {}
        if field_value.lower:
            range_values.update({"gte": field_value.lower_string})
        if field_value.upper:
            range_values.update({"lte": field_value.upper_string})
        filter_field = {
            "range": {
                field_name: range_values
            }
        }
    elif _is_iterable(field_value):
        filter_field = {
            "terms": {
                field_name: field_value
            }
        }
    else:
        filter_field = {
            "term": {
                field_name: field_value
            }
        }
    return filter_field
Return field to apply into filter, if an array then use a range, otherwise look for a term match