Fix mypy error expecting bool not np.bool

Author: tomvothecoder

.vscode/launch.json

@@ -0,0 +1,16 @@
+{
+  "version": "0.2.0",
+  "configurations": [
+    {
+      "name": "Python: Current File",
+      "type": "debugpy",
+      "request": "launch",
+      "program": "${file}",
+      "console": "integratedTerminal",
+      "justMyCode": true,
+      "env": {
+        "PYTHONPATH": "${workspaceFolder}"
+      }
+    }
+  ]
+}

cf_xarray/helpers.py

@@ -368,7 +368,7 @@ def _is_bounds_monotonic(bounds: np.ndarray) -> bool:
     if nonzero_diffs.size == 0:
         return True
 
-    return np.all(nonzero_diffs > 0) or np.all(nonzero_diffs < 0)
+    return bool(np.all(nonzero_diffs > 0) or np.all(nonzero_diffs < 0))
 
 
 def _get_order_of_core_dims(core_dim_orders: dict[str, str]) -> str:

ci/environment-all-min-deps.yml

@@ -2,6 +2,7 @@ name: cf_xarray_test
 channels:
   - conda-forge
 dependencies:
+  - python=3.11
   - pytest-cov
   - pytest
   - pytest-xdist