code: def _get_ip_layer(layer_idx):
      """Returns a tuple representing the input layer."""
      return (
          str(layer_idx),
          {
              "label": "i/p",
              "shape": "circle",
              "style": "filled",
              "fillcolor": _IPOP_FILLCOLOR,
              "fontsize": _IPOP_FONTSIZE,
              "fontname": _IPOP_FONT,
          },
      )
  
file_path: dragonfly/dragonfly/nn/nn_visualise.py
imports: import functools
  import os
label_desc: Use image node_id 4 for calling a global function with example usage: _get_ip_layer(layer_idx) and returns: str,  dict