@:value(8)staticinlineread onlyBYTES_PER_ELEMENT:Int = 8
@:value({ byteOffset : 0 })staticinlinefromBytes(bytes:Bytes, byteOffset:Int = 0, ?len:Int):Float64Array
@:implread onlylength:Int
@:value({ end : null })@:implinlinesubarray(begin:Int, ?end:Int):Float64Array
@:implinlinetoBytes():Bytes