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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 get(self, table_name):
 """Load table class by name, class not yet initialized"""

        assert table_name in self.tabs, \
            "Table not avaiable. Avaiable tables: {}".format(
                ", ".join(self.tabs.keys())
            )
        return self.tabs[table_name]