code: def clear(self, color=True, depth=True, stencil=True):
          
          bits = 0
          if isinstance(color, np.ndarray) or bool(color):
              if not isinstance(color, bool):
                  self.set_clear_color(color)
              bits |= gl.GL_COLOR_BUFFER_BIT
          if depth:
              if not isinstance(depth, bool):
                  self.set_clear_depth(depth)
              bits |= gl.GL_DEPTH_BUFFER_BIT
          if stencil:
              if not isinstance(stencil, bool):
                  self.set_clear_stencil(stencil)
              bits |= gl.GL_STENCIL_BUFFER_BIT
          self.glir.command('FUNC', 'glClear', bits)
docs: Clear the screen buffers
      
          This is a wrapper for gl.glClear.
      
          Parameters
          ----------
          color : bool | str | tuple | instance of Color
              Clear the color buffer bit. If not bool, ``set_clear_color`` will
              be used to set the color clear value.
          depth : bool | float
              Clear the depth buffer bit. If float, ``set_clear_depth`` will
              be used to set the depth clear value.
          stencil : bool | int
              Clear the stencil buffer bit. If int, ``set_clear_stencil`` will
              be used to set the stencil clear index.