Write a Verilog function to complete the following module, one that automatically counts the number of shifts. It needs to shift a word to the left until the most significant bit of the input word is equal to 1.
module word_shift(in_word, num_shifts);
input [7:0] in_word;
output [7:0] num_shifts;
assign num_shifts = shift_count(in_word);
//write the function below
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endmodule