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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def from_code( cls, schema, # type: GraphQLSchema code, # type: Union[str, Any] uptodate=None, # type: Optional[bool] extra_namespace=None, # type: Optional[Dict[str, Any]] ):
 """Creates a GraphQLDocument object from compiled code and the globals. This is used by the loaders and schema to create a document object. """

        if isinstance(code, string_types):
            filename = "<document>"
            code = compile(code, filename, "exec")
        namespace = {"__file__": code.co_filename}
        exec(code, namespace)
        if extra_namespace:
            namespace.update(extra_namespace)
        rv = cls._from_namespace(schema, namespace)
        # rv._uptodate = uptodate
        return rv