///
/// **Example:**
/// ```rust
+ /// # fn a() {}
+ /// # fn b() {}
+ /// # let x: i32 = 1;
/// if x.is_positive() {
/// a();
/// } else if x.is_negative() {
/// Could be written:
///
/// ```rust
+ /// # fn a() {}
+ /// # fn b() {}
+ /// # let x: i32 = 1;
/// if x.is_positive() {
/// a();
/// } else if x.is_negative() {