diff --git a/yangson/enumerations.py b/yangson/enumerations.py
index 4ff8393fa1ec9df18df2e3f826e8cf9724196509..4d4c513cbc5d30ff542d1a20b6deed758ea51b7d 100644
--- a/yangson/enumerations.py
+++ b/yangson/enumerations.py
@@ -4,32 +4,54 @@ from enum import Enum
 
 class ContentType(Enum):
     """Enumeration of instance data content types."""
+
     config = 1
+    """Configuration data."""
     nonconfig = 2
+    """Data that does not represent configuration."""
     all = 3
+    """Nodes containing both configuration and state data."""
 
 class DefaultDeny(Enum):
     """Enumeration of NACM default deny values."""
+
     none = 1
+    """Data node with no default access restrictions."""
     write = 2
+    """Sensitive security system parameter."""
     all = 3
+    """Very sensitive security system parameter."""
 
 class Axis(Enum):
     """Enumeration of implemented XPath axes."""
+
     ancestor = 1
+    """Ancestors of the context node."""
     ancestor_or_self = 2
+    """Context node and its ancestors."""
     attribute = 3
+    """Attributes of the context node."""
     child = 4
+    """Children of the context node."""
     descendant = 5
+    """Descendants of the context node."""
     descendant_or_self = 6
+    """Context node and its descendants."""
     following_sibling = 7
+    """Following siblings of the context node."""
     parent = 8
+    """Parent of the context node."""
     preceding_sibling = 9
+    """Preceding siblings of the context node."""
     self = 10
+    """Just the context node."""
 
 class MultiplicativeOp(Enum):
     """Enumeration of XPath multiplicative operators."""
+
     multiply = 1
+    """Multiplication operator (``*``)."""
     divide = 2
+    """Division operator (``div``)."""
     modulo = 3
-
+    """Modulo operator (``mod``)."""