class Parameter(object): def __init__(self, name): self.name = name class Vehicle(object): def __init__ (self, name, path): self.name = name self.path = path self.params = [] class Library(object): def __init__ (self, name): self.name = name self.params = [] known_param_fields = [ 'Description', 'DisplayName', 'Values', 'Range', 'Units', 'Increment', 'User', ] required_param_fields = [ 'Description', 'DisplayName', 'User' ] known_group_fields = [ 'Path' ]