rename function to better describe it

Author: tempacc21

extension.bzl

@@ -2,7 +2,7 @@
 
 load("@bazel_tools//tools/build_defs/repo:jvm.bzl", "jvm_maven_import_external")
 
-def get_root_module(module_ctx):
+def get_wanted_module(module_ctx):
     for mod in module_ctx.modules:
         if mod.is_root and hasattr(mod.tags.client, "version"):
             return mod
@@ -11,7 +11,7 @@ def get_root_module(module_ctx):
             return mod
 
 def _openapi_generator_impl(module_ctx):
-    wanted_module = get_root_module(module_ctx)
+    wanted_module = get_wanted_module(module_ctx)
 
     for install in wanted_module.tags.client:
         jvm_maven_import_external(