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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def calc_qvr_v1(self):
 """Calculate the discharge of both outer embankments after Manning-Strickler. Required control parameters: |EKV| |SKV| |Gef| Required flux sequence: |AVR| |UVR| Calculated flux sequence: |QVR| Examples: For appropriate strictly positive values: qvr(17.053102, 17.053102) For zero or negative values of the flown through surface or the wetted perimeter: qvr(0.0, 0.0) """

    con = self.parameters.control.fastaccess
    flu = self.sequences.fluxes.fastaccess
    for i in range(2):
        if (flu.avr[i] > 0.) and (flu.uvr[i] > 0.):
            flu.qvr[i] = (con.ekv[i]*con.skv[i] *
                          flu.avr[i]**(5./3.)/flu.uvr[i]**(2./3.)*con.gef**.5)
        else:
            flu.qvr[i] = 0.