object

• <object> to be canonical
• <object> [not] to be empty
• <object> [not] to have a value [exhaustively] satisfying <assertion>
• <object> [not] to have a value [exhaustively] satisfying <any>
• <object> to [not] [only] have key <string>
• <object> to [not] [only] have keys <array>
• <object> to [not] [only] have keys <string+>
• <object> to have keys satisfying <assertion>
• <object> to have keys satisfying <any>
• <object> [not] to [only] have [own] properties <array>
• <object> to have [own] properties <object>
• <object> to have [own] property <string|Symbol> <any>
• <object> [not] to have property <string|Symbol>
• <object> to have values [exhaustively] satisfying <assertion>
• <object> to have values [exhaustively] satisfying <any>