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The txpool_inspect method is part of the txpool namespace in Ethereum's JSON-RPC API, which provides access to several non-standard RPC methods to inspect the contents of the transaction pool.
This method is specifically tailored for developers to quickly see the transactions in the pool and identify any potential issues.
It is used to list a textual summary of all the transactions currently pending for inclusion in the next block(s), as well as the ones that are being scheduled for future execution only.