parameters: (self, key, help="", default=None, validator=None, converter=None, **kw)
docstring: Add an option.
  
  
          @param key: the name of the variable, or a list or tuple of arguments
          @param help: optional help text for the options
          @param default: optional default value
          @param validator: optional function that is called to validate the option's value
          @type validator: Called with (key, value, environment)
          @param converter: optional function that is called to convert the option's value before putting it in the environment.
docstring_summary: Add an option.
docstring_tokens: Add an option .
function: def Add(self, key, help="", default=None, validator=None, converter=None, **kw):
          """
          Add an option.
  
  
          @param key: the name of the variable, or a list or tuple of arguments
          @param help: optional help text for the options
          @param default: optional default value
          @param validator: optional function that is called to validate the option's value
          @type validator: Called with (key, value, environment)
          @param converter: optional function that is called to convert the option's value before putting it in the environment.
          """
  
          if SCons.Util.is_List(key) or isinstance(key, tuple):
              self._do_add(*key)
              return
  
          if not SCons.Util.is_String(key) or \
              not SCons.Environment.is_valid_construction_var(key):
                  raise SCons.Errors.UserError("Illegal Variables.Add() key `%s'" % str(key))
  
          self._do_add(key, help, default, validator, converter)
function_tokens: def Add ( self , key , help = "" , default = None , validator = None , converter = None , * * kw ) : if SCons . Util . is_List ( key ) or isinstance ( key , tuple ) : self . _do_add ( * key ) return if not SCons . Util . is_String ( key ) or not SCons . Environment . is_valid_construction_var ( key ) : raise SCons . Errors . UserError ( "Illegal Variables.Add() key `%s'" % str ( key ) ) self . _do_add ( key , help , default , validator , converter )