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//! In-memory SQL-like query engine and lightweight data store.
//!
//! `fosk` lets tests and prototypes create JSON-backed collections in memory,
//! then query them with a small SQL-like language. Most users start with
//! [`Db`], configure id behavior with [`DbConfig`] and [`IdType`], and work
//! with collection handles returned by [`Db::create`] or [`Db::get`].
//!
//! # Example
//!
//! ```
//! use fosk::{Db, DbConfig};
//! use serde_json::json;
//!
//! # fn main() -> Result<(), String> {
//! let db = Db::new_with_config(DbConfig::int("id"));
//! let people = db.create("people");
//!
//! let _inserted = people
//! .add(json!({ "name": "Ada", "age": 37 }))
//! .map_err(|error| error.to_string())?;
//!
//! let rows = db
//! .query("SELECT id, name FROM people WHERE age > 30")
//! .map_err(|error| format!("{error:?}"))?;
//!
//! assert_eq!(rows.len(), 1);
//! # Ok(())
//! # }
//! ```
/// Database handles, collection handles, configuration, and schema metadata.
pub use ;