lib/importers/index.js
import JSONImporter from './importers.json.js'
import GEOJSONImporter from './importers.geojson.js'
import CSVImporter from './importers.csv.js'
export const importers = {
'application/json': JSONImporter,
'application/geo+json': GEOJSONImporter,
'text/csv': CSVImporter
}