Add missing staticmethod annotation to Delta.from_json()
Add missing staticmethod annotation to Delta.from_json()
johnbachman/belpy,bgyori/indra,sorgerlab/belpy,johnbachman/belpy,sorgerlab/belpy,bgyori/indra,sorgerlab/belpy,sorgerlab/indra,bgyori/indra,johnbachman/indra,johnbachman/indra,johnbachman/belpy,sorgerlab/indra,johnbachman/indra,sorgerlab/indra