code: def step_function(self, x, y):
      return torch.reciprocal(1 + torch.exp(-self.k * (x - y)))
  
file_path: EasyOCR/easyocr/DBNet/decoders/seg_detector.py
imports: from collections import OrderedDict
  import torch
  import torch.nn
label_desc: Use image node_id 6 for calling the SegDetector obj's underlying member method code with example usage: obj.step_function(x, y) and returns: torch