Method Missing Demo

method_missing_demo.rb

module MyModule
    # Public methods.....
    def self.doSomething(parameter)
       ...
    end
    
    def self.doSomethingElse()
       ...
    end

    def method_missing(method)
        puts "Method: \"#{method}\" does not exist."
    end

# EOF

I want the following, as demonstrated in IRB:

> require "mymodule"
=> true
> MyModule.doSomething()
=> (output)
> MyModule.doesNotExist()
=> Method: "doesNotExist" does not exist.