add_formatter(autopep8
  TYPE reformat
  TOOLS autopep8)
add_formatter(pep8
  TYPE check
  TOOLS pep8)
add_formatter(flake8
  TYPE check
  TOOLS flake8)
add_formatter(yapf
  TYPE reformat
  TOOLS yapf)
add_formatter(black
  VERSIONED
  TYPE reformat
  TOOLS black)
