/**
 * Helper type that allows using a type in a way that cannot be "widened" by inference on the value it is used on.
 *
 * This type was first suggested [in this Github discussion](https://github.com/microsoft/TypeScript/issues/14829#issuecomment-504042546).
 *
 * Example usage:
 *
 * ```ts
 * export function useQuery<
 *   TData = unknown,
 *   TVariables extends OperationVariables = OperationVariables,
 * >(
 *   query: DocumentNode | TypedDocumentNode<TData, TVariables>,
 *   options: QueryHookOptions<NoInfer<TData>, NoInfer<TVariables>> = {}
 * );
 * ```
 *
 * In this case, `TData` and `TVariables` should be inferred from `query`, but never widened from something in `options`.
 *
 * So, in this code example:
 *
 * ```ts
 * declare const typedNode: TypedDocumentNode<{ foo: string }, { bar: number }>;
 * const { variables } = useQuery(typedNode, {
 *   variables: { bar: 4, nonExistingVariable: "string" },
 * });
 * ```
 *
 * Without the use of `NoInfer`, `variables` would now be of the type `{ bar: number, nonExistingVariable: "string" }`.
 * With `NoInfer`, it will instead give an error on `nonExistingVariable`.
 *
 * @deprecated use the official `NoInfer` type instead.
 */
export type NoInfer<T> = [T][T extends any ? 0 : never];
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