code: def __exit__(self, *args):
      bind_func, const = self._bind
      bind_func(const, 0)
  
imports: from contextlib import contextmanager
  import numpy
  import OpenGL.GL
  from .meshutil import perspective
label_desc: Use image node_id 3 for calling the GLObject obj's underlying member method code with example usage: obj.__exit__() without return types