add copy to ZonedPluginRegistry

src/pluginregistry.py

@@ -8,7 +8,7 @@ from src.zonedpluginregistry import ZonedPluginRegistry
 
 
 class PluginRegistry():
-    plugins = ZonedPluginRegistry({})
+    plugins = ZonedPluginRegistry()
 
     @staticmethod
     def load_plugin(plugin_name: str):
@@ -22,6 +22,10 @@ class PluginRegistry():
                 return
         raise RuntimeError("plugin %s not found" % plugin_name)
 
+    @staticmethod
+    def create_zoned_plugin_registry():
+        return PluginRegistry.plugins.copy()
+
     @staticmethod
     def execute_single(function_name: str, *args) -> Optional[any]:
         return PluginRegistry.plugins.execute_single(function_name, *args)
@@ -29,3 +33,7 @@ class PluginRegistry():
     @staticmethod
     def execute(function_name: str, *args) -> [any]:
         return PluginRegistry.plugins.execute(function_name, *args)
+
+    @staticmethod
+    def execute_flat_map(function_name: str, *args) -> [any]:
+        return PluginRegistry.plugins.execute_flat_map(function_name, *args)