//! FFI API for symbolic integral transforms.
//!
//! This module provides three FFI interface styles:
//! - `handle`: Opaque pointer-based API for direct memory management
//! - `json`: JSON string-based API for language-agnostic integration
//! - `bincode_api`: Binary serialization API for high-performance applications
//!
//! Supported transforms include Fourier, Laplace, and Z-transforms with their
//! inverse operations and various properties (time shift, frequency shift,
//! scaling, differentiation, and convolution theorems), as well as
//! partial fraction decomposition.
//!
//! TODO: replacing *Expr with handle manager based one
/// Bincode-based FFI bindings for symbolic transforms using serialized `Expr` values.
/// Handle-based FFI bindings for symbolic transforms using opaque `Expr` handles.
/// JSON-based FFI bindings for symbolic transforms using serialized `Expr` values.