BackedUpImmutable.BackedUpImmutableDictType
# BackedUpImmutableDict{K, V} 
* Combines a key, not value, immutable hash dictionary with a backup of the original value defaults.
* For configuration data storage, with a simple restore to default
Base.ImmutableDictMethod

Constructor for StaticDict to take a series of pairs, varargs style

Base.ImmutableDictMethod

Constructor for StaticDict / ImmutableDict to take an array of key value pairs.