class_docstr: Module that calculates Shi-Tomasi corners.
  
  .. image:: _static/img/gftt_response.png
  
  See :func:`~kornia.feature.gftt_response` for details.
code: def __init__(self, grads_mode: str = "sobel") -> None:
      super().__init__()
      self.grads_mode: str = grads_mode
  
imports: from typing import Optional, Union
  import torch
  from kornia.core import Module, Tensor, tensor
  from kornia.core.check import KORNIA_CHECK_SHAPE
  from kornia.filters import gaussian_blur2d, spatial_gradient
label_desc: Use image node_id 1 to create a new CornerGFTT object from inherited base classes: Module with example: obj = CornerGFTT(grads_mode)