tendermint 0.40.4

Tendermint is a high-performance blockchain consensus engine that powers Byzantine fault tolerant applications written in any programming language. This crate provides core types for representing information about Tendermint blockchain networks, including chain information types, secret connections, and remote procedure calls (JSON-RPC).
Documentation
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Indicates that any pending requests should be completed and their responses flushed.

[ABCI documentation](https://docs.tendermint.com/master/spec/abci/abci.html#flush)