Add docs for setuponly and setupplan options.

Author: splunk-djenkins

doc/en/writing_plugins.rst

@@ -498,6 +498,8 @@ Session related reporting hooks:
 .. autofunction:: pytest_report_header
 .. autofunction:: pytest_report_teststatus
 .. autofunction:: pytest_terminal_summary
+.. autofunction:: pytest_fixture_setup
+.. autofunction:: pytest_fixture_post_finalizer
 
 And here is the central hook for reporting about
 test execution:
@@ -554,6 +556,10 @@ Reference of objects involved in hooks
     :members:
     :show-inheritance:
 
+.. autoclass:: _pytest.python.FixtureDef()
+    :members:
+    :show-inheritance:
+
 .. autoclass:: _pytest.runner.CallInfo()
     :members: