Changes

|Shifts bits in binary data.<br/>If {{Code|$by}} is zero, the result is identical to {{Code|$in}}. If {{Code|$by}} is positive then bits are shifted to the left. Otherwise, bits are shifted to the right. If the absolute value of <code>|$by|</code> is greater than the bit-length of {{Code|$in}} then an all-zeros result is returned. The result always has the same size as {{Code|$in}}. The shifting is logical: zeros are placed into discarded bits. If the value of {{Code|$in}} is the empty sequence, the function returns an empty sequence.