'Returns a tuple of arguments of \'self\'.
Examples
>>> from sympy import cot
>>> from sympy.abc import x, y
>>> cot(x).args
(x,)
>>> cot(x).args[0]
x
>>> (x*y).args
(x, y)
>>> (x*y).args[1]
y
Notes
Never use self._args, always use self.args.
Only use _args in __new__ when creating a new function.
Don\'t override .args() from Basic (so that it\'s easy to
change the interface in the future if needed).'

@property
def args(self):

    return self._args
