What are Kotlin delegates and how do you implement custom delegates?

Kotlin delegates implement the delegation pattern for properties and classes:\n\n1. Property Delegates\n• Delegate property access to another object\n• Reusable property behavior\n• Built-in delegates available\n\n2. Lazy Delegate\n\n\n3. Observable Delegate\n\n\n4. Custom Delegate\n\n\n5. Class Delegation\n\n\n6. Map Delegate\n\n\n7. Benefits\n• Code reuse and composition\n• Separation of concerns\n• Cleaner property implementations\n• Built-in common patterns