<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def include_raw_constructor(self, loader, node):
 """ Called when PyYaml encounters '!include-raw' """


        path = convert_path(node.value)

        with open(path, 'r') as f:
            config = f.read()

            config = self.inject_include_info(path, config, include_type='include-raw')

            self.add_file(path, config)

            return config