manifest for leveldb

manifest.js

{ methods: 
   { createReadStream: { type: 'readable' },
     readStream: { type: 'readable' },
     createValueStream: { type: 'readable' },
     valueStream: { type: 'readable' },
     createKeyStream: { type: 'readable' },
     keyStream: { type: 'readable' },
     createWriteStream: { type: 'writable' },
     writeStream: { type: 'writable' },
     isOpen: { type: 'sync' },
     isClosed: { type: 'sync' },
     put: { type: 'async' },
     get: { type: 'async' },
     del: { type: 'async' },
     batch: { type: 'async' },
     approximateSize: { type: 'async' } } }