}
		}

		// If any schema related validation errors have been found at this level or deeper, skip CEL expression validation.
		// Invalid OpenAPISchemas are not always possible to convert into valid CEL DeclTypes, and can lead to CEL
		// validation error messages that are not actionable (will go away once the schema errors are resolved) and that
		// are difficult for CEL expression authors to understand.

//	         ::= <template-prefix> <template-args>
//	         ::= <template-param>
//	         ::= <decltype>
//	         ::=
//	         ::= <substitution>
//
//	<template-prefix> ::= <prefix> <(template) unqualified-name>
//	                  ::= <template-param>
//	                  ::= <substitution>
//
//	<decltype> ::= Dt <expression> E
//	           ::= DT <expression> E
func (st *state) prefix() AST {
	var a AST

// there are more than one), or "" otherwise.
string GPUDeviceName(TF_Session* session) {
  std::unique_ptr<TF_Status, decltype(&TF_DeleteStatus)> status(
      TF_NewStatus(), TF_DeleteStatus);
  TF_Status* s = status.get();
  std::unique_ptr<TF_DeviceList, decltype(&TF_DeleteDeviceList)> list(
      TF_SessionListDevices(session, s), TF_DeleteDeviceList);
  TF_DeviceList* device_list = list.get();