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Design public APIs to work seamlessly across different programming languages and platforms. Follow these key principles:

1. Use platform-agnostic types in public interfaces:
   • Prefer int over size_t for array sizes and indices
   • Avoid unsigned types that don’t translate well to other languages
   • Use explicit size types (int32_t, int64_t) when specific sizes are required
2. Add proper binding annotations for cross-language support:

   class CV_EXPORTS_W MyClass {
   public:
    CV_WRAP void process(int size);  // Not size_t
    CV_WRAP_AS(processBytes) Mat process(InputArray data);  // Alias for clarity
   };
   

3. Avoid passing language-specific objects through plugin/module boundaries:
   • Don’t pass STL containers or C++ objects through plugin APIs
   • Use C-style interfaces or abstract base classes for plugin APIs
   • Consider providing factory functions for complex objects
4. Maintain binary compatibility:
   • Don’t modify existing function signatures
   • Create new overloads or functions for extended functionality
   • Document API version changes clearly

Following these guidelines ensures your API works reliably across Python, Java, and C++ while maintaining long-term stability.