Reference • Ponyo

PONYO_CONTAINER_MAP

Source
This is a high-level map that allows the underlying implementation to change over time as its optimized. The current implementation uses a red-black tree.
Examples:
local
\t    open Ponyo.String
in
val config = Map.new
val config = Map.insert config "PRODUCTION" 1
val config = Map.insert config "DEVELOPMENT" 2
val develLevel = Map.get config "DEVELOPMENT"
\tend