<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def get_file_breaks(self, filename):
 """List all file `filename` breakpoints"""

        return [
            breakpoint for breakpoint in self.breakpoints
            if breakpoint.on_file(filename)
        ]