@classmethod
  def get_new_blob_key(cls, old_blob_key):
    record = cls.get_by_blob_key(old_blob_key)
    if record:
      return record.new_blob_ref.key()
Looks up the new key for a blob.
dataset/ETHPy150Open AppScale/appscale/AppServer/google/appengine/ext/blobstore/blobstore.py/BlobMigrationRecord.get_new_blob_key