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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 object_types():
 """ Show all available 'entry points' available for searching. An entry point defines a uri that provides unfiltered access to all elements of the entry point type. :return: list of entry points by name :rtype: list(str) """

        # Return all elements from the root of the API nested under elements URI
        #element_uri = str(
        types = [element.rel
                 for element in entry_point()]
        types.extend(list(CONTEXTS))
        return types