Frequent issue with TypeScript and preferring import over require

Whenever possible, I try to use import over require but in some circumstances this breaks type checking. What is the correct way to handle this issue? Is it possible to cast an import? Are not all require's replaceable with import's?

Left: Property 'get' does not exist...

Right: import * as convict from "convict"; instead of require("convict");

Left:

"use strict";

import * as Busboy from "busboy";
import * as convcit from "convict";
import * as config from "./config";
import * as express from "express";
import * as helmet from "helmet";
import * as logger from "morgan";
import * as path from "path";

import * as requestDebug from "request-debug";
import * as requestJs from "request";

// [ts] Property 'get' does not exist on type 'typeof "PrizmDoc-Node.js-Sample/config"'.
if (config.get("env") !== "production") {
    requestDebug(requestJs);
}

...

Right:

//let convict = require("convict");

import * as convict from "convict";

const config = convict({
    "env": {
        "doc": "The application environment.",
        "format": ["production", "development", "test"],
        "default": "development",
        "env": "NODE_ENV"
    },

...

module.exports = config;