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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 load(self, instance, xblock):
 """ Get the filesystem for the field specified in 'instance' and the xblock in 'xblock' It is locally scoped. """


        # TODO: Get xblock from context, once the plumbing is piped through
        if djpyfs:
            return djpyfs.get_filesystem(scope_key(instance, xblock))
        else:
            # The reference implementation relies on djpyfs
            # https://github.com/edx/django-pyfs
            # For Django runtimes, you may use this reference
            # implementation. Otherwise, you will need to
            # patch pyfilesystem yourself to implement get_url.
            raise NotImplementedError("djpyfs not available")