# Functions
NewInt returns a new safe int.
NewInt64 returns a new safe int.
NewList returns a new safe list
@TODO generic type comparable interface cannot implement by struct，so we use any type for generic type.
NewMap returns a new safe map.
NewQueue returns a new safe queue.
NewStack returns a new safe stack.
NewString returns a new safe string.
# Structs
Int ...
Int64 ...
List ...
ListConfig ...
Map ...
MapConfig ...
Queue ...
QueueConfig ...
Stack ...
String ...