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