Fix ContractRx query result definitions (#3506)

CHANGELOG.md

@@ -11,6 +11,7 @@ Changes:
 
 - Allow for `Bounded*` type usage (as per latest Substrate)
 - Adjust internal TS definitions for providers
+- Fix `ContractRx` query result definitions (no extra Observable)
 
 
 ## 4.9.1 May 6, 2021

packages/api-contract/src/base/types.ts

@@ -30,7 +30,7 @@ export interface ContractGeneric<O, T> {
 }
 
 export type ContractCallResult<ApiType extends ApiTypes, T> = ApiType extends 'rxjs'
-  ? Observable<Observable<T>>
+  ? Observable<T>
   : Promise<ObsInnerType<Observable<T>>>;
 
 export interface ContractCallSend<ApiType extends ApiTypes> {