""" Quantity maps on to two things: required and cardinality. Though it is technically possible to use an integer as a quantity, that is never done in the core schema, which is our only target for now. We will handle cardinality of array dimensions elsewhere """ QUANTITY_MAP = { '*': { 'required': False, 'multivalued': True }, '+': { 'required': True, 'multivalued': True }, '?': { 'required': False, 'multivalued': False }, 1: { 'required': True, 'multivalued': False }, # include the NoneType for indexing None: { 'required': None, 'multivalued': None } }