## Description

x.k -- the same as x#(global k), i.e., treat k as a global symbol and provide the value stored in the hash table x under the key k.

May also be used in an assignment.

 i1 : x = new MutableHashTable; i2 : x.k = 444 o2 = 444 i3 : x.k o3 = 444 i4 : peek x o4 = MutableHashTable{k => 444}