-- -*- M2-comint -*- {* hash: 785771152 *}

i1 : H = new HashTable from {1 => a, 2 => b, 3 => c}

o1 = HashTable{1 => a}
               2 => b
               3 => c

o1 : HashTable

i2 : applyKeys(H, k -> k + 100)

o2 = HashTable{101 => a}
               102 => b
               103 => c

o2 : HashTable

i3 :