<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def find_proxy_plugin(component, plugin_name):
 """ Attempt to find a proxy plugin provided by a specific component Args: component (string):
 The name of the component that provides the plugin plugin_name (string):
 The name of the plugin to load Returns: TileBuxProxyPlugin: The plugin, if found, otherwise raises DataError """


    reg = ComponentRegistry()

    plugins = reg.load_extensions('iotile.proxy_plugin', comp_filter=component, class_filter=TileBusProxyPlugin,
                                  product_name='proxy_plugin')

    for _name, plugin in plugins:
        if plugin.__name__ == plugin_name:
            return plugin

    raise DataError("Could not find proxy plugin module in registered components or installed distributions",
                    component=component, name=plugin_name)