diff --git a/docs/for-devs/cfg_schema.rst b/docs/for-devs/cfg_schema.rst
index 749fc92..a12a60d 100644
--- a/docs/for-devs/cfg_schema.rst
+++ b/docs/for-devs/cfg_schema.rst
@@ -113,6 +113,7 @@ Base Datatypes
 .. autoclass:: peakrdl.config.schema.DateTime
 .. autoclass:: peakrdl.config.schema.Date
 .. autoclass:: peakrdl.config.schema.Time
+.. autoclass:: peakrdl.config.schema.AnyType
 
 Paths
 ^^^^^
@@ -123,3 +124,7 @@ Paths
 Python Objects
 ^^^^^^^^^^^^^^
 .. autoclass:: peakrdl.config.schema.PythonObjectImport
+
+Misc
+^^^^
+.. autoclass:: peakrdl.config.schema.Choice
diff --git a/src/peakrdl/config/schema.py b/src/peakrdl/config/schema.py
index 54a0e12..639f313 100644
--- a/src/peakrdl/config/schema.py
+++ b/src/peakrdl/config/schema.py
@@ -26,27 +26,51 @@ def extract(self, data: Any, path: str, err_ctx: str) -> Any:
         return data
 
 class String(_SimpleType):
+    """
+    Matches a string.
+    """
     TYPE = str
 
 class Integer(_SimpleType):
+    """
+    Matches an integer.
+    """
     TYPE = int
 
 class Float(_SimpleType):
+    """
+    Matches a float.
+    """
     TYPE = float
 
 class Boolean(_SimpleType):
+    """
+    Matches a boolean.
+    """
     TYPE = bool
 
 class DateTime(_SimpleType):
+    """
+    Matches a date + time.
+    """
     TYPE = datetime.datetime # type: ignore
 
 class Date(_SimpleType):
+    """
+    Matches a date.
+    """
     TYPE = datetime.date # type: ignore
 
 class Time(_SimpleType):
+    """
+    Matches a time.
+    """
     TYPE = datetime.time
 
 class AnyType(Schema):
+    """
+    Wildcard. Matches any type.
+    """
     def extract(self, data: Any, path: str, err_ctx: str) -> Any:
         return data