<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def main(self, x):
 """ Transposed form FIR implementation, uses full precision """

        for i in range(len(self.taps_fix_reversed)):
            self.next.mul[i] = x * self.taps_fix_reversed[i]
            if i == 0:
                self.next.acc[0] = self.mul[i]
            else:
                self.next.acc[i] = self.acc[i - 1] + self.mul[i]

        self.next.out = self.acc[-1]
        return self.out