def add_option(name, parameters)
      self.class.handle_warnings(name, **parameters.dup)
      chain_options.merge(name => parameters.merge(method_hash(parameters)))
    end
def add_option(name, parameters)
      self.class.handle_warnings(name, **parameters.dup)
      chain_options.merge(name => parameters.merge(method_hash(parameters)))
    end
Checks the given option-parameters for incompatibilities and registers a
   new option.