checkpoint==2.0.15

langgraph-checkpoint 2.0.15

Summary of Changes

• Added a new function get_checkpoint_metadata to standardize checkpoint metadata handling across different implementations (#3448)
• Fixed potential RuntimeError in AsyncBatchedBaseStore during garbage collection (#3448)
• Simplified checkpoint metadata handling in InMemorySaver (#3448)

Detailed Changes

langgraph.checkpoint.base.get_checkpoint_metadata

• Added a new function to extract and process checkpoint metadata from a RunnableConfig in a backward-compatible manner
• Implemented filtering of excluded and private metadata keys
• Only includes primitive types (string, int, boolean, float) in the metadata

langgraph.checkpoint.memory.InMemorySaver

• Refactored the put method to use the new get_checkpoint_metadata function
• Simplified metadata handling by removing custom metadata construction code
• Ensures consistent metadata handling across different checkpoint implementations

langgraph.store.base.batch.AsyncBatchedBaseStore

• Added error handling in the __del__ method to prevent RuntimeError exceptions when canceling tasks during garbage collection
• This fixes potential issues that could occur if the event loop is already closed when the object is being destroyed