<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def _fast_write(self, outfile, value):
 """Function for fast writing to motor files."""

        outfile.truncate(0)
        outfile.write(str(int(value)))
        outfile.flush()