code: def shift_rgb(img, r_shift, g_shift, b_shift):
      if img.dtype == np.uint8:
          return _shift_rgb_uint8(img, r_shift, g_shift, b_shift)
  
      return _shift_rgb_non_uint8(img, r_shift, g_shift, b_shift)
  
imports: from __future__ import division
  from typing import Optional, Sequence, Union
  from warnings import warn
  import cv2
  import numpy
  import skimage
  from albumentations import random_utils
  from albumentations.augmentations.utils import MAX_VALUES_BY_DTYPE, _maybe_process_in_chunks, clip, clipped, ensure_contiguous, is_grayscale_image, is_rgb_image, non_rgb_warning, preserve_channel_dim, preserve_shape
label_desc: Use image node_id 16 for calling a global function with example usage: shift_rgb(img, r_shift, g_shift, b_shift) and returns: _shift_rgb_non_uint8, _shift_rgb_uint8