Removes a column from the blueprint.

        :param name: The column name
        :type name: str

        :rtype: Blueprint

def _remove_column(self, name):
        """
        Removes a column from the blueprint.

        :param name: The column name
        :type name: str

        :rtype: Blueprint
        """
        self._columns = filter(lambda c: c.name != name, self._columns)

        return self