question: public static VectorStoreRAM readFromFile ( FlagConfig flagConfig , String vectorFile ) throws IOException { if ( vectorFile . isEmpty ( ) ) { throw new IllegalArgumentException ( "vectorFile argument cannot be empty." ) ; } VectorStoreRAM store = new VectorStoreRAM ( flagConfig ) ; store . initFromFile ( vectorFile ) ; return store ; }
target:  Returns a new vector store, initialized from disk with the given vectorFile. Dimension and vector type from store on disk may overwrite any previous values in flagConfig.