fix bugs and optimize extraction prompt and parse_fn (#18046)

Update Vectara Index to return both document level and page level met…

remove assert for multimodal llms

remove assert for multimodal llms

fix(multimodal): check image path is file before open (#18043)

mypy

Use int type for redirect URI port (#18097)

Fix the redundancy of ElasticsearchReader. (#18106)

fix metadata node

Fix typo in comment of LlamaIndex model guide (multi-modal code) (#18103

fix null model meta references (#18109)

notebook

fix null model meta references

Contextual Generate model (#17913)

Contextual reranker (#18075)

fix gemini roles (#18108)

fix

update docs

update lancedb

fix playwright tests

more google fixes

BUILD

Merge branch 'main' into massi/stepwise-send_event

fix edge case in JSON parsing

fix unit tests

- fix: rssReader support customized user-agent (#18076)