code: def _darknet_route(inputs, params, attrs, prefix):
      """Process the route operation, which is equivalent to concat."""
      new_attrs = {"axis": attrs.get("dim", 1)}
      return get_relay_op("concatenate")(
          (inputs[0], inputs[1]), **new_attrs
      )
  
imports: from enum import Enum
  import numpy
  import tvm
  from tvm.ir import IRModule
  from ..None import analysis
  from ..None import expr
  from ..None import function
  from .common import get_relay_op, new_var
label_desc: Use image node_id 15 for calling a global function with example usage: _darknet_route(inputs, params, attrs, prefix) and returns: get_relay_op