nl_tokens: Fetch a blob from SHA .
pl_tokens: function fetch ( repoState , driver , sha ) { if ( isFetched ( repoState , sha ) ) { // No op if already fetched return Q ( repoState ) ; } const cache = repoState . getCache ( ) ; // Fetch the blob return <mask> . fetchBlob ( sha ) // Then store it in the cache . then ( ( blob ) => { const newCache = CacheUtils . addBlob ( cache , sha , blob ) ; return repoState . set ( 'cache' , newCache ) ; } ) ; }