style: cargo fmt

examples/atp.rs

@@ -159,10 +159,12 @@ fn main() {
 }
 
 mod csv {
-    use std::fs::File;
-    use std::io::{self, BufRead, BufReader, Lines};
-    use std::ops;
-    use std::path::Path;
+    use std::{
+        fs::File,
+        io::{self, BufRead, BufReader, Lines},
+        ops,
+        path::Path,
+    };
 
     pub struct Reader {
         header_map: Vec<String>,