method Node.isParameteredimport { Node } from "https://dotland.deno.dev/x/fresh@1.7.3/src/dev/deps.ts"; isParametered<T extends Node>(node: T | undefined): node is ParameteredNode & ParameteredNodeExtensionType & TGets if the node is a ParameteredNode. Gets if the node is a ParameteredNode. Type ParametersT extends NodeParametersnode: T | undefinedReturnsnode is ParameteredNode & ParameteredNodeExtensionType & T