text: BASE2 = "01"
  BASE10 = "0123456789"
  BASE16 = "0123456789ABCDEF"
  BASE62 = "ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789abcdefghijklmnopqrstuvwxyz"
  
  FALSE_VALUES = (
      0,
      False,
      "f",
      "FALSE",
      "False",
      "false",
      "N",
      "n",
      "NO",
      "No",
      "no",
  )
  """A collection of values that should evaluate to ``False``."""
  
  TRUE_VALUES = (
      1,
      True,
      "t",
      "TRUE",
      "True",
      "true",
      "Y",
      "y",
      "YES",
      "Yes",
      "yes",
  )
  """A collection of values that should evaluate to ``True``."""
  
  BOOLEAN_VALUES = FALSE_VALUES + TRUE_VALUES
  """A collection of values that should be identified as boolean."""
  