In this situation, what is the purpose of using the template keyword in c++?

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The template keyword in C++ is used to declare or define template functions or classes. Template functions or classes provide a way to write generic code that works with different types of data. By using templates, programmers can avoid writing multiple copies of the same function or class for different data types, saving time and reducing code redundancy. The template keyword indicates to the compiler that a function or class is a template and should not be compiled until it is instantiated with specific data types.