code: def __init__(self):
      # from tests/data/RGB.byte.tif
      self.affine = Affine(
          300.0379266750948,
          0.0,
          101985.0,
          0.0,
          -300.041782729805,
          2826915.0,
      )
      self.bounds = (101985.0, 2611485.0, 339315.0, 2826915.0)
      self.transform = self.affine
      self.height = 718
      self.width = 791
  
file_path: rasterio/tests/test_io_mixins.py
imports: from affine import Affine
  import pytest
  import rasterio
  from rasterio.windows import Window, WindowMethodsMixin
label_desc: Use image node_id 1 to create a new MockDatasetBase object  with example: obj = MockDatasetBase()