CL-OBJC> (describe-object (gethash "List" *objc-classes*) t)
#<ObjC Class List> is an instance of class #<STANDARD-CLASS OBJC-CLASS>.
The following slots have :INSTANCE allocation:
 ISA              #.(SB-SYS:INT-SAP #XA0A612E0)
 SUPER-CLASS      #.(SB-SYS:INT-SAP #XA0A610A0)
 NAME             "List"
 VERSION          0
 INFO             16385
 INSTANCE-SIZE    16
 IVARS            #.(SB-SYS:INT-SAP #XA0A61B40)
 METHOD-LISTS     #.(SB-SYS:INT-SAP #XA0A61760)
 CACHE            #.(SB-SYS:INT-SAP #X90ACB220)
 PROTOCOLS        #.(SB-SYS:INT-SAP #X00000000)