Merge pull request #2994 from langchain-ai/fix/add-codeblock-import #1

Job	Run time
Check formatting	4m 27s
Check linting	5m 47s
Unit Tests (ubuntu-latest, 18.x)	6m 0s
Unit Tests (ubuntu-latest, 19.x)	5m 33s
Unit Tests (ubuntu-latest, 20.x)	6m 5s
test-exports / exports-cjs	8m 36s
test-exports / exports-bun	6m 33s
test-exports / exports-cf	9m 29s
test-exports / exports-esbuild	7m 57s
test-exports / exports-esm	7m 46s
test-exports / exports-vercel	9m 25s
test-exports / exports-vite	9m 13s
	1h 26m 51s

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