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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_et0_wet0_v1(self):
 """Correct the given reference evapotranspiration and update the corresponding log sequence. Required control parameters: |NHRU| |KE| |WfET0| Required input sequence: |PET| Calculated flux sequence: |ET0| Updated log sequence: |WET0| Basic equations: :math:`ET0_{new} = WfET0 \\cdot KE \\cdot PET + (1-WfET0) \\cdot ET0_{alt}` Example: Prepare four hydrological response units with different value combinations of parameters |KE| and |WfET0|: Note that the actual value of time dependend parameter |WfET0| is reduced due the difference between the given parameter and simulation time steps: 1.0, 1.0, 0.1, 0.1 For the first two hydrological response units, the given |PET| value is modified by -0.4 mm and +0.4 mm, respectively. For the other two response units, which weight the "new" evaporation value with 10 %, |ET0| does deviate from the old value of |WET0| by -0.04 mm and +0.04 mm only: et0(1.6, 2.4, 1.96, 2.04) wet0([[1.6, 2.4, 1.96, 2.04]]) """

    con = self.parameters.control.fastaccess
    inp = self.sequences.inputs.fastaccess
    flu = self.sequences.fluxes.fastaccess
    log = self.sequences.logs.fastaccess
    for k in range(con.nhru):
        flu.et0[k] = (con.wfet0[k]*con.ke[k]*inp.pet +
                      (1.-con.wfet0[k])*log.wet0[0, k])
        log.wet0[0, k] = flu.et0[k]