typing 3rd attempt

Author: kmuehlbauer

xarray/coding/variables.py

@@ -279,7 +279,7 @@ def encode(self, variable: Variable, name: T_Name = None) -> Variable:
         return Variable(dims, data, attrs, encoding, fastpath=True)
 
     def decode(self, variable: Variable, name: T_Name = None) -> Variable:
-        return NotImplementedError
+        raise NotImplementedError()
 
 
 class CFScaleOffsetCoder(VariableCoder):
@@ -478,8 +478,8 @@ def __getitem__(self, key):
 class EndianCoder(VariableCoder):
     """Decode Endianness to native."""
 
-    def encode(self):
-        return NotImplementedError
+    def encode(self, variable: Variable, name: T_Name = None) -> Variable:
+        raise NotImplementedError()
 
     def decode(self, variable: Variable, name: T_Name = None) -> Variable:
         dims, data, attrs, encoding = unpack_for_decoding(variable)
@@ -519,5 +519,5 @@ def encode(self, variable: Variable, name: T_Name = None) -> Variable:
             variable = Variable(dims, data, attrs, encoding, fastpath=True)
         return variable
 
-    def decode(self):
-        return NotImplementedError
+    def decode(self, variable: Variable, name: T_Name = None) -> Variable:
+        raise NotImplementedError()