code: def get_closest_index(
      in_x, rounding_method, boxes, use_int_div=False
  ):
      """get the closest index to a value based on a certain rounding method"""
      if use_int_div:
          closest_x_index = in_x.astype("int32")
          return closest_x_index
  
      if rounding_method == "round" or boxes is not None:
          closest_x_index = te.round(in_x).astype("int32")
      elif rounding_method == "round_prefer_floor":
          closest_x_index = te.ceil(in_x - 0.5).astype("int32")
      elif rounding_method == "round_prefer_ceil":
          closest_x_index = te.floor(in_x + 0.5).astype("int32")
      elif rounding_method == "floor":
          # Add epsilon to floor to prevent gpu rounding errors.
          epsilon = 1e-5
          closest_x_index = te.floor(in_x + epsilon).astype("int32")
      elif rounding_method == "ceil":
          # Subract epsilon from ceil to prevent gpu rounding errors.
          epsilon = 1e-5
          closest_x_index = te.ceil(in_x - epsilon).astype("int32")
      else:
          raise ValueError(
              f"Unknown rounding method: {rounding_method}"
          )
      return closest_x_index
  
imports: from __future__ import absolute_import
  import tvm
  from tvm import te
  from tvm.topi.utils import nchw_pack_layout, nchw_xc_layout
  from ..None import tag
label_desc: Use image node_id 9 for calling a global function with example usage: get_closest_index(in_x, rounding_method, boxes, use_int_div) and returns: closest_x_index, closest_x_index