/*** Validate stable native, JavaScript, or alpha Experimental Stack desired state. */
export declare function isStackImplementationConfig(value: Record<string, unknown>): boolean;
/*** Validate the serializable native-stack screen option subset. */
export declare function isStackScreenOptions(value: unknown): boolean;
/*** Validate the finite serializable Drawer option subset. */
export declare function isDrawerNavigatorOptions(value: unknown): boolean;
/*** Validate tabs implementation desired state, with omitted implementation meaning adaptive. */
export declare function isTabsImplementationConfig(value: Record<string, unknown>): boolean;
/*** Validate a reference into the app-owned screen registry. */
export declare function isNavigatorScreenReference(value: unknown): boolean;
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