<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def posted(self):
 """ True if bug was moved to POST in given time frame """

        for who, record in self.logs:
            if record["field_name"] == "status" and record["added"] == "POST":
                return True
        return False