old_contents: heroes = {
      'all': '0x02E00000FFFFFFFF', 'reaper': '0x02E0000000000002', 'tracer': '0x02E0000000000003',
      'mercy': '0x02E0000000000004', 'hanzo': '0x02E0000000000005', 'torbjorn': '0x02E0000000000006',
      'reinhardt': '0x02E0000000000007', 'pharah': '0x02E0000000000008', 'winston': '0x02E0000000000009',
      'widowmaker': '0x02E000000000000A', 'bastion': '0x02E0000000000015', 'symmetra': '0x02E0000000000016',
      'zenyatta': '0x02E0000000000020', 'genji': '0x02E0000000000029', 'roadhog': '0x02E0000000000040',
      'mccree': '0x02E0000000000042', 'junkrat': '0x02E0000000000065', 'zarya': '0x02E0000000000068',
      'soldier:76': '0x02E000000000006E', 'lucio': '0x02E0000000000079', 'dva': '0x02E000000000007A',
      'mei': '0x02E00000000000DD', 'sombra': '0x02E000000000012E', 'doomfist': '0x02E000000000012F',
      'ana': '0x02E000000000013B', 'orisa': '0x02E000000000013E', 'moira' : '0x02E00000000001A2'
  }
new_contents: heroes = {
      'all': '0x02E00000FFFFFFFF', 'reaper': '0x02E0000000000002',
      'tracer': '0x02E0000000000003', 'mercy': '0x02E0000000000004',
      'hanzo': '0x02E0000000000005', 'torbjorn': '0x02E0000000000006',
      'reinhardt': '0x02E0000000000007', 'pharah': '0x02E0000000000008',
      'winston': '0x02E0000000000009', 'widowmaker': '0x02E000000000000A',
      'bastion': '0x02E0000000000015', 'symmetra': '0x02E0000000000016',
      'zenyatta': '0x02E0000000000020', 'genji': '0x02E0000000000029',
      'roadhog': '0x02E0000000000040', 'mccree': '0x02E0000000000042',
      'junkrat': '0x02E0000000000065', 'zarya': '0x02E0000000000068',
      'soldier:76': '0x02E000000000006E', 'lucio': '0x02E0000000000079',
      'dva': '0x02E000000000007A', 'mei': '0x02E00000000000DD',
      'sombra': '0x02E000000000012E', 'doomfist': '0x02E000000000012F',
      'ana': '0x02E000000000013B', 'orisa': '0x02E000000000013E',
      'moira': '0x02E00000000001A2'
  }
  
subject: Refactor to comply with PEP8