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KRL, short for Kernel-based Real-time Learning, is a programming language used in the Adept technology platform by Rethink Robotics. The language allows robot arms like the Baxter and Sawyer to be programmed quickly and easily using real-time kinematic feedback. KRL enables programmers to define complex tasks through a set of high-level APIs without needing deep expertise in robotic control algorithms or low-level programming languages. The language is part of an effort to make industrial robots more adaptable and accessible on production lines where they can learn from human behavior through demonstration rather than extensive manual coding.