<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def results(self):
 """ Returns a summary dict. Returns: dict """

        return dict(e0=self.e0, b0=self.b0, b1=self.b1, v0=self.v0)