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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/// A category of ABCI method.
///
/// ABCI methods are split into four categories. Tendermint opens one ABCI
/// connection for each category and refers to these categories as *connections*,
/// but nothing actually restricts an ABCI connection from calling methods in
/// multiple categories.
///
/// This enum breaks out the `Flush` method as a distinct category, since it is
/// used to control the execution of other methods.
pub enum MethodKind {
    /// A consensus method, driven by the consensus protocol and responsible for
    /// block execution.
    Consensus,
    /// A mempool method, used for validating new transactions before they're
    /// shared or included in a block.
    Mempool,
    /// A snapshot method, used for serving and restoring state snapshots.
    Snapshot,
    /// An info method, used for initialization and user queries.
    Info,
    /// The flush method requests that all pending method requests are fully executed.
    Flush,
}