<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def setup_step_into(self, frame, pure=False):
 """Setup debugger for a "stepInto" """

        self.frame_calling = frame
        if pure:
            self.frame_stop = None
        else:
            self.frame_stop = frame
        self.frame_return = None
        self.frame_suspend = False
        self.pending_stop = True 
        return