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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 setup_observations(self):
 """ main entry point for setting up observations """

        obs_methods = [self.setup_water_budget_obs,self.setup_hyd,
                       self.setup_smp,self.setup_hob,self.setup_hds,
                       self.setup_sfr_obs]
        obs_types = ["mflist water budget obs","hyd file",
                     "external obs-sim smp files","hob","hds","sfr"]
        self.obs_dfs = {}
        for obs_method, obs_type in zip(obs_methods,obs_types):
            self.log("processing obs type {0}".format(obs_type))
            obs_method()
            self.log("processing obs type {0}".format(obs_type))