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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 factory1D(dependent_variables, helper_functions):
 """Fields factory generating specialized container build around a triflow Model and xarray. Wrapper for 1D data. Parameters dependent_variables : iterable for str name of the dependent variables helper_functions : iterable of str name of the helpers functions Returns ------- triflow.BaseFields Specialized container which expose the data as a structured numpy array """

        return BaseFields.factory(("x", ),
                                  [(name, ("x", ))
                                   for name
                                   in dependent_variables],
                                  [(name, ("x", ))
                                   for name
                                   in helper_functions],)