example: debug print client "any" client

Doesn't actually play nice with hyper and wasm, oh well.

examples/debug_h1_client.rs

@@ -1,15 +0,0 @@
-#![cfg(feature = "h1_client")]
-
-use http_client::{h1::H1Client, HttpClient};
-use http_types::{Method, Request};
-
-#[async_std::main]
-async fn main() {
-    let client = H1Client::new();
-
-    let req = Request::new(Method::Get, "http://example.org");
-
-    client.send(req).await.unwrap();
-
-    dbg!(client);
-}

examples/print_client_debug.rs

@@ -0,0 +1,22 @@
+use http_client::HttpClient;
+use http_types::{Method, Request};
+
+#[cfg(any(feature = "h1_client", feature = "docs"))]
+use http_client::h1::H1Client as Client;
+#[cfg(all(feature = "hyper_client", not(feature = "docs")))]
+use http_client::hyper::HyperClient as Client;
+#[cfg(all(feature = "curl_client", not(feature = "docs")))]
+use http_client::isahc::IsahcClient as Client;
+#[cfg(all(feature = "wasm_client", not(feature = "docs")))]
+use http_client::wasm::WasmClient as Client;
+
+#[async_std::main]
+async fn main() {
+    let client = Client::new();
+
+    let req = Request::new(Method::Get, "http://example.org");
+
+    client.send(req).await.unwrap();
+
+    dbg!(client);
+}