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// -------------------------------------------------------------------------------------------------
// Copyright (C) 2015-2025 Nautech Systems Pty Ltd. All rights reserved.
// https://nautechsystems.io
//
// Licensed under the GNU Lesser General Public License Version 3.0 (the "License");
// You may not use this file except in compliance with the License.
// You may obtain a copy of the License at https://www.gnu.org/licenses/lgpl-3.0.en.html
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// -------------------------------------------------------------------------------------------------
//! Trading domain model for [NautilusTrader](http://nautilustrader.io).
//!
//! The `nautilus-model` crate provides a type-safe domain model that forms the backbone of the
//! framework and can serve as the foundation for building algorithmic trading systems.
//!
//! # Platform
//!
//! [NautilusTrader](http://nautilustrader.io) is an open-source, high-performance, production-grade
//! algorithmic trading platform, providing quantitative traders with the ability to backtest
//! portfolios of automated trading strategies on historical data with an event-driven engine,
//! and also deploy those same strategies live, with no code changes.
//!
//! NautilusTrader's design, architecture, and implementation philosophy prioritizes software correctness and safety at the
//! highest level, with the aim of supporting mission-critical, trading system backtesting and live deployment workloads.
//!
//! # Feature flags
//!
//! This crate provides feature flags to control source code inclusion during compilation,
//! depending on the intended use case, i.e. whether to provide Python bindings
//! for the [nautilus_trader](https://pypi.org/project/nautilus_trader) Python package,
//! or as part of a Rust only build.
//!
//! - `ffi`: Enables the C foreign function interface (FFI) from [cbindgen](https://github.com/mozilla/cbindgen).
//! - `python`: Enables Python bindings from [PyO3](https://pyo3.rs).
//! - `stubs`: Enables type stubs for use in testing scenarios.
//! - `high-precision`: Enables [high-precision mode](https://nautilustrader.io/docs/nightly/getting_started/installation#precision-mode) to use 128-bit value types.
//! - `defi`: Enables the DeFi (Decentralized Finance) domain model.
//! - `extension-module`: Builds the crate as a Python extension module.