def __contains__(self, column):
if isinstance(column, orb.Column):<EOL><INDENT>return self.__model == column.schema().model() and self.__column == column.name()<EOL><DEDENT>else:<EOL><INDENT>return column == self.__column<EOL><DEDENT>
Returns whether or not the query defines the inputted column name.

:param      value | <variant>

:return     <bool>

:usage      |>>> from orb import Query as Q
            |>>> q = Q('testing') == True
            |>>> 'testing' in q
            |True
            |>>> 'name' in q
            |False