mut m := map[string]int // Only maps with string keys are allowed for now
m['one'] = 1
m['two'] = 2
println(m['one']) // "1"
println(m['bad_key']) // "0"
println('bad_key' in m) // Use `in` to detect whether such key exists
m.delete('two')
numbers := {
'one': 1,
'two': 2,
}