Added missing docstrings to classes

1 files changed, 22 insertions, 1 deletions

diff --git a/src/apscheduler/_enums.py b/src/apscheduler/_enums.py
index dec6669..139333a 100644
--- a/src/apscheduler/_enums.py
+++ b/src/apscheduler/_enums.py
@@ -4,21 +4,38 @@ from enum import Enum, auto
 
 
 class RunState(Enum):
+    """Used to track the running state of schedulers and workers."""
+
+    #: not running yet, but in the process of starting
     starting = auto()
+    #: running
     started = auto()
+    #: still running but in the process of shutting down
     stopping = auto()
+    #: not running
     stopped = auto()
 
 
 class JobOutcome(Enum):
+    """Used to indicate how the execution of a job ended."""
+
+    #: the job completed successfully
     success = auto()
+    #: the job raised an exception
     error = auto()
+    #: the job's execution was delayed enough for it to miss its designated run time by
+    #: too large a margin
     missed_start_deadline = auto()
+    #: the job's execution was cancelled
     cancelled = auto()
-    expired = auto()
 
 
 class ConflictPolicy(Enum):
+    """
+    Used to indicate what to do when trying to add a schedule whose ID conflicts with an
+    existing schedule.
+    """
+
     #: replace the existing schedule with a new one
     replace = auto()
     #: keep the existing schedule as-is and drop the new schedule
@@ -28,6 +45,10 @@ class ConflictPolicy(Enum):
 
 
 class CoalescePolicy(Enum):
+    """
+    Used to indicate how to
+    """
+
     #: run once, with the earliest fire time
     earliest = auto()
     #: run once, with the latest fire time