Make functions more type aware

[botkalista]

Added some generics to the main functions to have better result types for ensureConnection, includeCost and outputType.

Some examples:

import { EPhotoMakerEnum, Runware } from "../Runware";

const runware = new Runware({ apiKey: "API_KEY" });

async function testRequestImages() {

    await runware.ensureConnection(); // Promise<void>

    const result = await runware.requestImages({
        model: '',
        outputType: 'URL',
        positivePrompt: '',
        includeCost
    });

    if (!result) return;
    const res = result[0];

    const url = res.imageURL; // string
    const b64 = res.imageBase64Data; // Property 'imageBase64Data' does not exist on type 'ITextToImage<"URL">'
    const uri = res.imageDataURI; // Property 'imageDataURI' does not exist on type 'ITextToImage<"URL">'

    const cost = res.cost; // number
}

async function testUpscale() {

    await runware.ensureConnection(); // Promise<void>

    const result = await runware.upscaleGan({
        outputType: 'URL',
        inputImage: '',
        upscaleFactor: 1,
    });

    if (!result) return;
    const res = result;

    const url = res.imageURL; //  string
    const b64 = res.imageBase64Data; // Property 'imageBase64Data' does not exist on type 'ITextToImage<"URL">'
    const uri = res.imageDataURI; // Property 'imageDataURI' does not exist on type 'ITextToImage<"URL">'

    const cost = res.cost; // Property 'cost' does not exist on type 'IImage<"URL", false>'.
}


async function testUpscale() {

    await runware.ensureConnection(); //  Promise<void>

    const result = await runware.removeImageBackground({
        outputType: 'URL',
        inputImage: '',
        model: '',
        includeCost: true
    });

    if (!result) return;
    const res = result;

    const url = res.imageURL; // string
    const b64 = res.imageBase64Data; // Property 'imageBase64Data' does not exist on type 'ITextToImage<"URL">'
    const uri = res.imageDataURI; // Property 'imageDataURI' does not exist on type 'ITextToImage<"URL">'

    const cost = res.cost; // number
}