flow(epics): barely type annotate the loading epic
flow(epics): barely type annotate the loading epic

jdfreder/nteract,nteract/composition,captainsafia/nteract,jdetle/nteract,rgbkrk/nteract,rgbkrk/nteract,nteract/nteract,rgbkrk/nteract,jdfreder/nteract,nteract/composition,0u812/nteract,jdfreder/nteract,captainsafia/nteract,nteract/nteract,nteract/nteract,jdetle/nteract,temogen/nteract,rgbkrk/nteract,rgbkrk/nteract,nteract/nteract,captainsafia/nteract,jdfreder/nteract,nteract/composition,temogen/nteract,0u812/nteract,nteract/nteract,0u812/nteract,jdetle/nteract,temogen/nteract,jdetle/nteract,0u812/nteract,captainsafia/nteract