make type readonly
@@ -35,7 +35,7 @@ export type NormalizationRootNode =
| ConcreteRequest
| NormalizationSplitOperation;
-export type ProvidedVariablesType = {[key: string]: {|get(): mixed|}};
+export type ProvidedVariablesType = {+[key: string]: {|get(): mixed|}};
/**
* Contains the parameters required for executing a GraphQL request.
