newBitWidth(bitWidth) {
        this.bitWidth = bitWidth;
        for (let i = 0; i < this.inputSize; i++) {
            this.inp[i].bitWidth = bitWidth;
        }
        this.output1.bitWidth = bitWidth;
    }
@memberof Multiplexer
function to change bitwidth of the element
@param {number} bitWidth - bitwidth