style: make clippy happy

src/coroutine.rs

@@ -1,30 +1,36 @@
 //! Python coroutine implementation, used notably when wrapping `async fn`
 //! with `#[pyfunction]`/`#[pymethods]`.
-use crate::coroutine::waker::AsyncioWaker;
-use crate::exceptions::{PyRuntimeError, PyStopIteration};
-use crate::panic::PanicException;
-use crate::pyclass::IterNextOutput;
-use crate::types::PyIterator;
-use crate::{IntoPy, Py, PyAny, PyErr, PyObject, PyResult, Python};
+use std::{
+    any::Any,
+    future::Future,
+    panic,
+    pin::Pin,
+    sync::Arc,
+    task::{Context, Poll},
+};
+
 use futures_util::FutureExt;
 use pyo3_macros::{pyclass, pymethods};
-use std::any::Any;
-use std::future::Future;
-use std::panic;
-use std::pin::Pin;
-use std::sync::Arc;
-use std::task::{Context, Poll};
+
+use crate::{
+    coroutine::waker::AsyncioWaker,
+    exceptions::{PyRuntimeError, PyStopIteration},
+    panic::PanicException,
+    pyclass::IterNextOutput,
+    types::PyIterator,
+    IntoPy, Py, PyAny, PyErr, PyObject, PyResult, Python,
+};
 
 mod waker;
 
 const COROUTINE_REUSED_ERROR: &str = "cannot reuse already awaited coroutine";
 
+type FutureOutput = Result<PyResult<PyObject>, Box<dyn Any + Send>>;
+
 /// Python coroutine wrapping a [`Future`].
 #[pyclass(crate = "crate")]
 pub struct Coroutine {
-    future: Option<
-        Pin<Box<dyn Future<Output = Result<PyResult<PyObject>, Box<dyn Any + Send>>> + Send>>,
-    >,
+    future: Option<Pin<Box<dyn Future<Output = FutureOutput> + Send>>>,
     waker: Option<Arc<AsyncioWaker>>,
 }