bitwise_left_shift ================== Shifts the bits of each element ``x1_i`` of the input array ``x1`` to the left by appending ``x2_i`` (i.e., the respective element in the input array ``x2``) zeros to the right of ``x1_i``. **Abstract Signature:** ``bitwise_left_shift(x1: Union[array, int], x2: Union[array, int])`` .. raw:: html