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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 update(self):
        '''
        Update the income process, the assets grid, the permanent income grid,
        the medical shock distribution, and the terminal solution.

        Parameters
        ----------
        none

        Returns
        -------
        none
        '''
        self.updateIncomeProcess()
        self.updateAssetsGrid()
        self.updatepLvlNextFunc()
        self.updatepLvlGrid()
        self.updateMedShockProcess()
        self.updateSolutionTerminal()