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//! # ESRuntime SDK
//!
//! SDK for building event-sourced command handlers as WASM modules.
//!
//! ## Overview
//!
//! This crate provides the traits and types needed to write command handlers
//! that run in the ESRuntime. Command handlers:
//!
//! 1. Declare which events they need to read (via `EventSet`)
//! 2. Declare which domain IDs to query (via `CommandInput`)
//! 3. Rebuild state from historical events (via `apply`)
//! 4. Make decisions and emit new events (via `handle`)
//!
//! ## Example
//!
//! ```rust,ignore
//! use rive_core::prelude::*;
//! use serde::Deserialize;
//! use my_schema::{OpenedAccount, SentFunds};
//!
//! #[derive(EventSet)]
//! enum Query {
//! OpenedAccount(OpenedAccount),
//! SentFunds(SentFunds),
//! }
//!
//! #[derive(CommandInput, Deserialize)]
//! struct Input {
//! #[domain_id("account_id")]
//! account_id: String,
//! amount: f64,
//! }
//!
//! #[derive(Default)]
//! struct Withdraw {
//! balance: f64,
//! }
//!
//! impl Command for Withdraw {
//! type Query = Query;
//! type Input = Input;
//!
//! fn apply(&mut self, event: Query) {
//! match event {
//! Query::OpenedAccount(ev) => self.balance = ev.initial_balance,
//! Query::SentFunds(ev) => self.balance -= ev.amount,
//! }
//! }
//!
//! fn handle(self, input: Input) -> Result<Emit, CommandError> {
//! if self.balance < input.amount {
//! return Err(CommandError::rejected("Insufficient funds"));
//! }
//!
//! Ok(Emit::new().event(SentFunds {
//! account_id: input.account_id,
//! amount: input.amount,
//! recipient_id: None,
//! }))
//! }
//! }
//!
//! #[tokio::main]
//! async fn main() -> anyhow::Result<()> {
//! let client = UmaDBClient::new("http://0.0.0.0:50051".to_string())
//! .connect_async()
//! .await?,
//!
//! Withdraw::execute(&client, Input {
//! account_id: "bob".to_string(),
//! amount: 14.50,
//! }).await?;
//!
//! Ok(())
//! }
//! ```
pub use ;