text: const setMarkers = (markers) => {
    return {
      type: 'SET_MARKERS',
      markers
    }
  }
  
  const addMarker = (marker) => {
    return {
      type: 'ADD_MARKER',
      marker
    }
  }
  
  const removeMarker = (key) => {
    return {
      type: 'REMOVE_MARKER',
      key
    }
  }
  
  const moveMarker = ({key, location}) => {
    return {
      type: 'MOVE_MARKER',
      key,
      location
    }
  }
  
  export default {
    setMarkers,
    addMarker,
    removeMarker,
    moveMarker
  }
  