karpal-optics 0.6.1

Profunctor optics (Lens, Prism) for the Industrial Algebra ecosystem
Documentation 
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// Copyright (C) 2026 Industrial Algebra
// SPDX-License-Identifier: Apache-2.0

/// Marker trait for all optics.
///
/// This trait exists to unify the optic family under a single taxonomy.
/// Concrete optic types (Lens, Prism, etc.) implement this trait.
pub trait Optic {}