What is function template and class template? Write appropriate statements to create a template class for Queue data structure in C++.

In C++, function templates and class templates are powerful features that allow developers to write generic code, enabling the creation of functions and classes that work with different data types without sacrificing type safety. Let's delve into the concepts and then explore how to create a template class for a Queue data structure.

### Function Template:
A function template in C++ allows you to write a generic function that can work with different data types. It is defined using the `template` keyword, followed by the template parameter list enclosed in angle brackets (`<>`). Here's a simple example ________ ________ __________ _______ _________.
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