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