Add diagnostics support to roku (#64729)

homeassistant/components/roku/diagnostics.py

@@ -0,0 +1,27 @@
+"""Diagnostics support for Roku."""
+from __future__ import annotations
+
+from typing import Any
+
+from homeassistant.config_entries import ConfigEntry
+from homeassistant.core import HomeAssistant
+
+from .const import DOMAIN
+from .coordinator import RokuDataUpdateCoordinator
+
+
+async def async_get_config_entry_diagnostics(
+    hass: HomeAssistant, config_entry: ConfigEntry
+) -> dict[str, Any]:
+    """Return diagnostics for a config entry."""
+    coordinator: RokuDataUpdateCoordinator = hass.data[DOMAIN][config_entry.entry_id]
+
+    return {
+        "entry": {
+            "data": {
+                **config_entry.data,
+            },
+            "unique_id": config_entry.unique_id,
+        },
+        "data": coordinator.data.as_dict(),
+    }