def delete(self, *values):
# Returns an update action that removes the given values from a set attribute
value = values[0] if len(values) == 1 else values
return DeleteAction(self, self._to_operand(value))
def difference_update(self, subset):
# Returns an update action that deletes the subset from this set attribute
return DeleteAction(self, self._to_operand(subset))
def delete(self, value):
# Returns an update action that removes the given value from a set attribute
return DeleteAction(self, self._to_operand(value))