get = async (hash) => {
    try {
      const value = await db.get(hash)
      if (value) {
        return value
      }
    } catch (e) {
      // LEVEL_NOT_FOUND (ie. key not found)
    }
  }
Gets data from Level.
@function
@param {string} hash The hash of the data to get.
@memberof module:Storage.Storage-Level
@instance