@property<EOL><INDENT>def field(self):<DEDENT>
return self._field<EOL>
Gets the field of this CustomerSort.
The field to sort the results on. It could be the total money spent at the merchant, the date of the first visit (etc). See [CustomerSortField](#type-customersortfield) for possible values

:return: The field of this CustomerSort.
:rtype: str