code: def round_if_needed(x, threshold, **kwargs):
      backend = kwargs["backend"]
      if threshold is not None:
          x = backend.greater(x, threshold)
          x = backend.cast(x, backend.floatx())
      return x
  
file_path: segmentation_models/segmentation_models/base/functional.py
label_desc: Use image node_id 4 for calling a global function with example usage: round_if_needed(x, threshold) and returns: x