code: public Blob get(String blob, BlobGetOption... options) {
      return storage.get(BlobId.of(getName(), blob), options);
    }
docs: Returns the requested blob in this bucket or {@code null} if not found.
  
  <p>Example of getting a blob in the bucket, only if its metageneration matches a value,
  otherwise a {@link StorageException} is thrown.
  
  <pre>{@code
  String blobName = "my_blob_name";
  long generation = 42;
  Blob blob = bucket.get(blobName, BlobGetOption.generationMatch(generation));
  }</pre>
  
  @param blob name of the requested blob
  @param options blob search options
  @throws StorageException upon failure