Extracted from Pike v8.0 release 164 as of 2016-04-05.
Method Search.Blobs()->read()
Method
read
array read()
Description
returns ({ string word_id, string blob }) or ({0,0}) As a side-effect,
this function frees the blob and the word_id, so you can only read
the blobs struct once. Also, once you have called read,
add_words will no longer work as expected.