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x/deno2node/src/deps.deno.ts>TypePredicateNode#getAssertsModifierOrThrow

Compile your Deno project to run on Node.js.
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method TypePredicateNode.prototype.getAssertsModifierOrThrow
import { TypePredicateNode } from "https://deno.land/x/deno2node@v1.11.0/src/deps.deno.ts";

Gets the asserts modifier if it exists or throws otherwise.

Parameters

optional
message: string | (() => string)

Returns

Node<ts.AssertsKeyword>