Produce a TRUE instruction.

    :param classical_reg: A classical register to modify.
    :return: An instruction object representing the equivalent MOVE.

def TRUE(classical_reg):
    """
    Produce a TRUE instruction.

    :param classical_reg: A classical register to modify.
    :return: An instruction object representing the equivalent MOVE.
    """
    warn("`TRUE a` has been deprecated. Use `MOVE a 1` instead.")
    if isinstance(classical_reg, int):
        classical_reg = Addr(classical_reg)
    return MOVE(classical_reg, 1)