Describe the process and benefits of using module augmentation in TypeScript.
Instruction: Explain what module augmentation is, with a practical example of extending an existing module's functionalities.
Context: This question targets the candidate's knowledge of advanced TypeScript features, such as module augmentation, and their ability to extend or modify existing type declarations in a modular codebase.
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Module augmentation patches the type declarations of an existing module. It does not create JavaScript functions or add properties to runtime objects. The runtime extension must exist separately and be loaded before use.
This complete three-file example extends an existing named class with a reset method...