def METHOD_NAME():
  """Load a list of SHA1s corresponding to the toolchains that we want installed
  to build with."""
  env_version = GetVisualStudioVersion()
  if env_version == '2015':
    # Update 3 final with 10.0.15063.468 SDK and no vctip.exe.
    return ['f53e4598951162bad6330f7a167486c7ae5db1e5']
  if env_version == '2017':
    # VS 2017 Update 9 (15.9.12) with 10.0.18362 SDK, 10.0.17763 version of
    # Debuggers, and 10.0.17134 version of d3dcompiler_47.dll, with ARM64
    # libraries.
    return ['418b3076791776573a815eb298c8aa590307af63']
  raise Exception('Unsupported VS version %s' % env_version)