docstr: Takes account for the fact that the image tiles are stored with
  imprecise tfw files.
docstr_tok: ["Takes","account","for","the","fact","that","the","image","tiles","are","stored","with","imprecise","tfw","files","."]
code: def world_file_extent(*args, **kwargs):
      """
      Takes account for the fact that the image tiles are stored with
      imprecise tfw files.
  
      """
      extent, pix_size = cimg_nest.Img.world_file_extent(
          *args, **kwargs
      )
      # round the extent
      extent = tuple(round(v, 4) for v in extent)
      pix_size = tuple(round(v, 4) for v in pix_size)
      return extent, pix_size
  
imports: import io
  from pathlib import Path
  import pickle
  import shutil
  import sys
  import warnings
  import numpy
  from numpy.testing import assert_array_almost_equal, assert_array_equal
  from PIL import Image
  import pytest
  import shapely.geometry
  from cartopy import config
  import cartopy.io.img_nest
  import cartopy.io.img_tiles
label_desc: Use image node_id 1 for calling the RoundedImg obj's underlying member method code with example usage: obj.world_file_extent() and returns: extent,  pix_size