import * as ts from 'typescript'

const testTypeOf = ts.createTypeOf(ts.createLiteral(""))
const testAwait = ts.createAwait(ts.createLiteral(""))

console.log(testTypeOf.kind, testAwait.kind) // 189, 191

console.log(ts.isTypeOfExpression(testTypeOf)) // Prints false, should be true
console.log(ts.isTypeOfExpression(testAwait)) // Prints true, should be false

    function isTypeOfExpression(node) {
        return node.kind === 191;
    }
    ts.isTypeOfExpression = isTypeOfExpression;
    function isVoidExpression(node) {
        return node.kind === 190;
    }
    ts.isVoidExpression = isVoidExpression;
    function isAwaitExpression(node) {
        return node.kind === 191;
    }
    ts.isAwaitExpression = isAwaitExpression;

    function createTypeOf(expression) {
        var node = createSynthesizedNode(189);
        node.expression = ts.parenthesizePrefixOperand(expression);
        return node;
    }