chore: import upstream snapshot with attribution

tests/fixtures/sample.kt

@@ -0,0 +1,49 @@
+import kotlinx.coroutines.delay
+import kotlin.math.max
+
+data class Config(val baseUrl: String, val timeout: Int)
+
+class HttpClient(private val config: Config) {
+    fun get(path: String): String {
+        return buildRequest("GET", path)
+    }
+
+    fun post(path: String, body: String): String {
+        return buildRequest("POST", path)
+    }
+
+    private fun buildRequest(method: String, path: String): String {
+        return "$method ${config.baseUrl}$path"
+    }
+}
+
+interface Loggable {
+    fun log()
+}
+
+open class BaseProcessor
+
+class Result<T>
+
+class DataProcessor : BaseProcessor(), Loggable {
+    var current: Result<DataProcessor> = Result()
+
+    fun run(input: DataProcessor): Result<DataProcessor> {
+        return current
+    }
+
+    override fun log() {}
+}
+
+class LoggingList<T>(inner: MutableList<T>) : MutableList<T> by inner
+
+fun createClient(baseUrl: String): HttpClient {
+    val config = Config(baseUrl, 30)
+    return HttpClient(config)
+}
+
+enum class ChatType {
+    NORMAL,
+    GROUP,
+    SYSTEM
+}