Explain the concept of metaprogramming in Ruby and provide an example of its usage.

Metaprogramming in Ruby refers to the ability of a program to modify or generate code at runtime. It allows developers to write code that can create, modify, or inspect code itself. This dynamic aspect of Ruby enables powerful and flexible programming techniques. One of the key features of metaprogramming in Ruby is the ability to define methods dynamically. Ruby provides methods like `define_method` and `method_missing` that allow developers to create methods on the fly, giving the program the ability to respond to messages that were not predefined. Here's an example that demonstrates metaprogramming in Ruby: ``` ruby`class MyClass # Define multiple methods dy....