Clean up JSON Schema Compiler.

tools/json_schema_compiler/dart_generator.py

Index: tools/json_schema_compiler/dart_generator.py
diff --git a/tools/json_schema_compiler/dart_generator.py b/tools/json_schema_compiler/dart_generator.py
index 3a4c2e33c10a9044962a0e32f88af65d4584e5b3..ddd8a2c563cac2cee754a567ea31a3c287741304 100644
--- a/tools/json_schema_compiler/dart_generator.py
+++ b/tools/json_schema_compiler/dart_generator.py
@@ -6,8 +6,8 @@ Generator language component for compiler.py that adds Dart language support.
 """
 
 from code import Code
-from model import *
-from schema_util import *
+from model import Function, PropertyType
+from schema_util import StripNamespace
 
 import os
 from datetime import datetime
@@ -278,9 +278,9 @@ class _Generator(object):
     c.Concat(self._GenerateDocumentation(f))
 
     if not self._NeedsProxiedCallback(f):
-        c.Append("%s => %s;" % (self._GenerateFunctionSignature(f),
-                               self._GenerateProxyCall(f)))
-        return c
+      c.Append("%s => %s;" % (self._GenerateFunctionSignature(f),
+                              self._GenerateProxyCall(f)))
+      return c
 
     (c.Sblock("%s {" % self._GenerateFunctionSignature(f))
       .Concat(self._GenerateProxiedFunction(f.callback, f.callback.name))