func (mm *FastIntIntMap) Size() int {
	if mm == nil {
		return 0
	}

	return len(mm.m)
}
// Size returns how many items are currently in the map. This is a synonym for Len.
Size returns how many items are currently in the map. This is a synonym for Len.
// Size returns how many items are currently in the map . This is a synonym for Len .
func (mm *FastIntIntMap) Size() int {
	if mm == nil {
		return 0
	}
	return len(mm.m)
}
func ( mm * FastIntIntMap ) Size ( ) int { if mm == nil { return 0 } return len ( mm . m ) }
Size returns how many items are currently in the map.
Size returns how many items are currently in the map .