Technical requirementsRe-ranking, transforming, and filtering nodes using postprocessorsExploring how postprocessors filter, transform, and re-rank nodesSimilarityPostprocessorKeywordNodePostprocessorPrevNextNodePostprocessorLongContextReorderPIINodePostprocessor and NERPIINodePostprocessorMetadataReplacementPostprocessorSentenceEmbeddingOptimizerTime-based postprocessorsRe-ranking postprocessorsFinal thoughts about node postprocessorsUnderstanding response synthesizersImplementing output parsing techniquesExtracting structured outputs using output parsersExtracting structured outputs using Pydantic programsBuilding and using query enginesExploring different methods of building query enginesAdvanced uses of the QueryEngine interfaceHands-on – building quizzes in PITSSummary