|Argument - index||The 0 based index of the byte of data to reterve (see GeLength for upper limit).|
|Description||Allows a byte within the contained sequence to be accessed|
|Returns||Returns a reference to the byte within the sequence|
|Remarks||The non-const version can also be used to modify bytes within the sequence.|
The reference provided is only valid until the next non-const call is made to the class, if you are relying on the value of the data returned, then copy the bytes value, don't store it as a reference.