style: union with unknown collapses to unknown

docs/interfaces/_types_.sink.md

@@ -38,18 +38,19 @@ ___
 
 ### error
 
-▸ **error**(`error`: Error \| readonly GraphQLError[] \| unknown): void
+▸ **error**(`error`: unknown): void
 
 An error that has occured. Calling this function "closes" the sink.
-The error can be also `CloseEvent`, but to avoid bundling DOM typings
-because the client can run in Node env too, you should assert
-the close event type during implementation.
+Besides the errors being `Error` and `readonly GraphQLError[]`, it
+can also be a `CloseEvent`, but to avoid bundling DOM typings because
+the client can run in Node env too, you should assert the close event
+type during implementation.
 
 #### Parameters:
 
 Name | Type |
 ------ | ------ |
-`error` | Error \| readonly GraphQLError[] \| unknown |
+`error` | unknown |
 
 **Returns:** void
 

docs/modules/_types_.md

@@ -4,6 +4,8 @@
 
 # Module: "types"
 
+types
+
 ## Index
 
 ### Interfaces

src/types.ts

@@ -4,8 +4,6 @@
  *
  */
 
-import { GraphQLError } from 'graphql';
-
 /**
  * ID is a string type alias representing
  * the globally unique ID used for identifying
@@ -26,11 +24,12 @@ export interface Sink<T = unknown> {
   next(value: T): void;
   /**
    * An error that has occured. Calling this function "closes" the sink.
-   * The error can be also `CloseEvent`, but to avoid bundling DOM typings
-   * because the client can run in Node env too, you should assert
-   * the close event type during implementation.
+   * Besides the errors being `Error` and `readonly GraphQLError[]`, it
+   * can also be a `CloseEvent`, but to avoid bundling DOM typings because
+   * the client can run in Node env too, you should assert the close event
+   * type during implementation.
    */
-  error(error: Error | readonly GraphQLError[] | unknown): void;
+  error(error: unknown): void;
   /** The sink has completed. This function "closes" the sink. */
   complete(): void;
 }