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diff --git a/rustlings/exercises/quizzes/quiz2.rs b/rustlings/exercises/quizzes/quiz2.rs
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-// This is a quiz for the following sections:
-// - Strings
-// - Vecs
-// - Move semantics
-// - Modules
-// - Enums
-//
-// Let's build a little machine in the form of a function. As input, we're going
-// to give a list of strings and commands. These commands determine what action
-// is going to be applied to the string. It can either be:
-// - Uppercase the string
-// - Trim the string
-// - Append "bar" to the string a specified amount of times
-//
-// The exact form of this will be:
-// - The input is going to be a Vector of 2-length tuples,
-//   the first element is the string, the second one is the command.
-// - The output element is going to be a vector of strings.
-
-enum Command {
-    Uppercase,
-    Trim,
-    Append(usize),
-}
-
-mod my_module {
-    use super::Command;
-
-    // TODO: Complete the function as described above.
-    // pub fn transformer(input: ???) -> ??? { ??? }
-    pub fn transformer(input: Vec<(String, Command)>) -> Vec<String> {
-        let mut out = Vec::new();
-        for inp in input {
-            out.push(match inp.1 {
-                Command::Uppercase => inp.0.to_uppercase(),
-                Command::Trim      => String::from(inp.0.trim()),
-                Command::Append(n) => {
-                    let mut r = inp.0;
-                    for _ in 0..n {
-                        r += "bar";
-                    }
-                    r
-                }
-            });
-        }
-        out
-    }
-}
-
-fn main() {
-    // You can optionally experiment here.
-}
-
-#[cfg(test)]
-mod tests {
-    // TODO: What do we need to import to have `transformer` in scope?
-    // use ???;
-    use super::Command;
-    use super::my_module::transformer;
-
-    #[test]
-    fn it_works() {
-        let input = vec![
-            ("hello".to_string(), Command::Uppercase),
-            (" all roads lead to rome! ".to_string(), Command::Trim),
-            ("foo".to_string(), Command::Append(1)),
-            ("bar".to_string(), Command::Append(5)),
-        ];
-        let output = transformer(input);
-
-        assert_eq!(
-            output,
-            [
-                "HELLO",
-                "all roads lead to rome!",
-                "foobar",
-                "barbarbarbarbarbar",
-            ]
-        );
-    }
-}