gn format // (the rest)

third_party/cython/rules.gni

 # Copyright 2014 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 template("python_binary_module_sources") {
   # Only available on linux for now.
   assert(is_linux)
   assert(defined(invoker.sources))
 
   cython_root = "//third_party/cython"
   cython_script = "$cython_root/src/cython.py"
   cython_output = "${target_out_dir}/${target_name}.cc"
 
   generator_target_name = target_name + "_cython_compiler"
   config_name = target_name + "_python_config"
 
   target_visibility = [ ":$target_name" ]
 
   action(generator_target_name) {
     visibility = target_visibility
     script = cython_script
     sources = invoker.sources
-    outputs = [ cython_output ]
+    outputs = [
+      cython_output,
+    ]
     args = [
              "--cplus",
              "-I",
              rebase_path("//", root_build_dir),
              "-o",
              rebase_path(cython_output, root_build_dir),
            ] + rebase_path(sources, root_build_dir)
   }
 
   config(config_name) {
@@ skipping 74 matching lines @@
     if (defined(invoker.configs)) {
       configs += invoker.configs
     }
   }
 
   copy(target_name) {
     python_base_module = invoker.python_base_module
     sources = [
       "$root_out_dir/${shared_library_prefix}${shared_library_name}${shared_library_suffix}",
     ]
-    outputs =
-        [ "$root_out_dir/python/$python_base_module/${target_name}${python_module_suffix}" ]
+    outputs = [
+      "$root_out_dir/python/$python_base_module/${target_name}${python_module_suffix}",
+    ]
     deps = [
       ":$shared_library_name",
     ]
   }
 }