Function isAggregateFunction

packages/graph/src/FunctionRegistry.ts:1689–1692

(name: string)

 * Check if a function is an aggregate function.
 */
export function isAggregateFunction(name: string): boolean {
  const def = functionRegistry.get(name);
  return def?.category === "aggregate";
}

/**
 * Check if a function's argument at the given index expects a path.