Fix callback typing (#342)

mtth · Apr 15, 2021 · e11bdfa · e11bdfa
1 parent ac8d040
commit e11bdfa
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/types/index.d.ts b/types/index.d.ts
@@ -71,7 +71,7 @@ declare namespace schema {
 
 type Schema = Type | schema.AvroSchema;
 
-type Callback<V, Err = any> = (err: Err, value: V) => void;
+type Callback<V, Err = any> = (err: Err | null, value?: V) => void;
 
 
 type Codec = (buffer: Buffer, callback: Callback<Buffer>) => void;