Add data converter docs

tivars/data.py

@@ -74,19 +74,21 @@ def set(cls, value: _T, **kwargs) -> bytes:
 
 
 class Data(Bytes):
+    """
+    No-op converter for data sections with associated metadata
+
+    The following metadata fields are automatically set by this converter:
+
+            - Version
+    """
+
     _T = bytes
 
     @classmethod
     def set(cls, value: _T, *, instance=None, **kwargs) -> _T:
         """
         Converts ``bytes`` -> ``bytes`` and updates metadata fields
 
-        Certain metadata fields are updated automatically based on the entry's data.
-        The following are set by this converter:
-
-            - Version
-            - Length (for sized data)
-
         :param value: The value to convert
         :param instance: The instance which contains the data section
         :return: The bytes in ``value``, unchanged
@@ -97,6 +99,15 @@ def set(cls, value: _T, *, instance=None, **kwargs) -> _T:
 
 
 class SizedData(Data):
+    """
+    No-op converter for sized data sections with associated metadata
+
+    The following metadata fields are automatically set by this converter:
+
+            - Version
+            - Length
+    """
+
     _T = bytes
 
     @classmethod