Fixes for CI

Author: A5rocks

docs/source/reference-lowlevel.rst

@@ -56,6 +56,8 @@ Global statistics
 .. autoclass:: RunStatistics()
 
 
+.. _trio_contexts:
+
 The current Trio context
 ------------------------
 

newsfragments/2757.feature.rst

@@ -0,0 +1 @@
+Add :func:`trio.lowlevel.in_trio_run` and :func:`trio.lowlevel.in_trio_task` and document the semantics (and differences) thereof. See :ref:`the documentation <trio_contexts>`.

src/trio/_core/_run.py

@@ -2953,10 +2953,18 @@ async def checkpoint_if_cancelled() -> None:
 
 
 def in_trio_run() -> bool:
+    """Check whether we are in a Trio run.
+
+    See also :ref:`the different types of contexts <trio_contexts>`.
+    """
     return hasattr(GLOBAL_RUN_CONTEXT, "runner")
 
 
 def in_trio_task() -> bool:
+    """Check whether we are in a Trio task.
+
+    See also :ref:`the different types of contexts <trio_contexts>`.
+    """
     return hasattr(GLOBAL_RUN_CONTEXT, "task")