Given python(An example Python file):
  def main():
      a = 1
      c = a + 1

Execute():
  let g:changes = [
  \ {'end': {'offset': 7, 'line': 1}, 'newText': 'func_qtffgsv', 'start': {'offset': 5, 'line': 1}},
  \ {'end': {'offset': 9, 'line': 1}, 'newText': '', 'start': {'offset': 8, 'line': 1}},
  \ {'end': {'offset': 15, 'line': 3}, 'newText': "    return c\n\n\ndef main():\n    c = func_qtffgsvi()\n", 'start': {'offset': 15, 'line': 3}}
  \]

  call ale#code_action#ApplyChanges(expand('%:p'), g:changes, {})

Expect(The changes should be applied correctly):
  def func_qtffgsvi():
      a = 1
      c = a + 1
      return c


  def main():
      c = func_qtffgsvi()


Given python(Second python example):
  import sys
  import exifread

  def main():
      with open(sys.argv[1], 'rb') as f:
          exif = exifread.process_file(f)
          dt = str(exif['Image DateTime'])
          date = dt[:10].replace(':', '-')

Execute():
  let g:changes = [
  \ {'end': {'offset': 16, 'line': 2}, 'newText': "\n\n\ndef func_ivlpdpao(f):\n    exif = exifread.process_file(f)\n    dt = str(exif['Image DateTime'])\n    date = dt[:10].replace(':', '-')\n    return date\n", 'start': {'offset': 16, 'line': 2}},
  \ {'end': {'offset': 32, 'line': 6}, 'newText': 'date = func', 'start': {'offset': 9, 'line': 6}},
  \ {'end': {'offset': 42, 'line': 8}, 'newText': "ivlpdpao(f)\n", 'start': {'offset': 33, 'line': 6}}
  \]

  call ale#code_action#ApplyChanges(expand('%:p'), g:changes, {})

Expect(The changes should be applied correctly):
  import sys
  import exifread


  def func_ivlpdpao(f):
      exif = exifread.process_file(f)
      dt = str(exif['Image DateTime'])
      date = dt[:10].replace(':', '-')
      return date


  def main():
      with open(sys.argv[1], 'rb') as f:
          date = func_ivlpdpao(f)