This looks close enough to your wished syntax:
letters = Dict([['a','A'] .=> "This is letter A";
['b','B'] .=> "This is letter B"])
letters['a'] # "This is letter A"
letters['A'] # "This is letter A"
This looks close enough to your wished syntax:
letters = Dict([['a','A'] .=> "This is letter A";
['b','B'] .=> "This is letter B"])
letters['a'] # "This is letter A"
letters['A'] # "This is letter A"