def __init__(self, name, type, parent_link, child_link, origin, axis, limit):
    self.name = name
    self.type = type
    self.parent_link = parent_link
    self.child_link = child_link
    self.origin = origin
    self.axis = axis
    self.limit = limit
def __init__(self, name, type, parent_link, child_link, origin, axis, limit):
    self.name = name
    self.type = type
    self.parent_link = parent_link
    self.child_link = child_link
    self.origin = origin
    self.axis = axis
    self.limit = limit