如何使用Kotlin协程强制并行rest调用？

implementation 'org.jetbrains.kotlinx:kotlinx-coroutines-core:1.5.0'
implementation 'org.jetbrains.kotlinx:kotlinx-coroutines-android:1.5.0'

import kotlinx.coroutines.*
import okhttp3.OkHttpClient
import okhttp3.Request

fun main() {
    runBlocking {
        launch {
            val result1 = async { callRestApi1() }
            val result2 = async { callRestApi2() }
            
            // 等待并获取结果
            val response1 = result1.await()
            val response2 = result2.await()
            
            // 处理结果
            processResponse(response1)
            processResponse(response2)
        }
    }
}

suspend fun callRestApi1(): String {
    val client = OkHttpClient()
    val request = Request.Builder()
        .url("https://api.example.com/endpoint1")
        .build()
    val response = client.newCall(request).execute()
    return response.body()?.string() ?: ""
}

suspend fun callRestApi2(): String {
    val client = OkHttpClient()
    val request = Request.Builder()
        .url("https://api.example.com/endpoint2")
        .build()
    val response = client.newCall(request).execute()
    return response.body()?.string() ?: ""
}

fun processResponse(response: String) {
    // 处理REST API的响应
    println(response)
}