public ImmutableLongDoubleMap newWithKeyValue(long key, double value)
{
MutableLongDoubleMap map = new LongDoubleHashMap(this.size() + 1);
map.putAll(this);
map.put(key, value);
return map.toImmutable();
}
public ImmutableLongDoubleMap newWithoutKey(long key)
{
MutableLongDoubleMap map = new LongDoubleHashMap(this.size());