b.getStringAttr(specs.xla_compile_device_type)));
    }
    attrs.push_back(b.getNamedAttr("allow_soft_placement",
                                   b.getBoolAttr(specs.enable_soft_placement)));
  } else {
    // Collects the argument and return nodes by looking up the node names
    // specified by the user.
    TF_ASSIGN_OR_RETURN(func_type, importer.InferMainFunctionType(