code: def is_numeric(x):
      return isinstance(x, int)
  
imports: import cv2
  import random
  import math
  import numpy
  from ..coreten import Tensor, to_tensor
  from ..annotations import Tuple, Union
  from ..color import to_hls, to_rgb, to_bgr, to_hsv, to_gray, to_lab
label_desc: Use image node_id 9 for calling a global function with example usage: is_numeric(x) and returns: isinstance