(self)
return []
:return: a list of extra crispy.Field classes as additional filters
        depending on type of export.
:return: a list of extra crispy.Field classes as additional filters
        depending on type of export.
: return : a list of extra crispy . Field classes as additional filters depending on type of export .
def extra_fields(self):
        """
        :return: a list of extra crispy.Field classes as additional filters
        depending on type of export.
        """
        return []
def extra_fields ( self ) : return [ ]