Create creation and update timestamps to the table.

        :rtype: Fluent

def timestamps(self, use_current=True):
        """
        Create creation and update timestamps to the table.

        :rtype: Fluent
        """
        if use_current:
            self.timestamp("created_at").use_current()
            self.timestamp("updated_at").use_current()
        else:
            self.timestamp("created_at")
            self.timestamp("updated_at")