def container(self, name, length, type, *parameters):
self.new_struct('<STR_LIT>', name, '<STR_LIT>' % length)<EOL>BuiltIn().run_keyword(type, *parameters)<EOL>self.end_struct()<EOL>
Define a container with given length.

        This is a convenience method creating a `Struct` with `length` containing fields defined in `type`.