(self)
return self.args[0]
Returns the state index related to this operator.

        >>> from sympy import Symbol
        >>> from sympy.physics.secondquant import F, Fd, B, Bd
        >>> p = Symbol('p')
        >>> F(p).state
        p
        >>> Fd(p).state
        p
        >>> B(p).state
        p
        >>> Bd(p).state
        p
Returns the state index related to this operator.
Returns the state index related to this operator .
def state(self):
        """
        Returns the state index related to this operator.

        >>> from sympy import Symbol
        >>> from sympy.physics.secondquant import F, Fd, B, Bd
        >>> p = Symbol('p')
        >>> F(p).state
        p
        >>> Fd(p).state
        p
        >>> B(p).state
        p
        >>> Bd(p).state
        p

        """
        return self.args[0]
def state ( self ) : return self . args [ 0 ]