def __init__(self, parameter=None, position=None, position_percent=None):
super().__init__()<EOL>if parameter is not None:<EOL><INDENT>self.from_parameter(parameter)<EOL><DEDENT>elif position is not None:<EOL><INDENT>self.position = position<EOL><DEDENT>elif position_percent is not None:<EOL><INDENT>self.position_percent = position_percent<EOL><DEDENT>
Initialize Position class.