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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 wa(self, chamber):
 """Setup access to the World Assembly API with the WorldAssembly object :param chamber: Chamber of the WA :type chamber: str, int :returns: WorldAssembly Object based off region_name :rtype: WorldAssembly """

        if isinstance(chamber, int):
            chamber = str(chamber)
        return WorldAssembly(chamber, self)