export declare const validate: (expression: boolean, msg: string, customErrorClass?: new (msg: string) => Error) => void;
export declare const validateNotNil: <T>(obj: T | null | undefined, msg: string, customErrorClass?: new (msg: string) => Error) => T;
export declare const validateArrayNotEmpty: <T>(obj: T[] | null | undefined, msg: string, customErrorClass?: new (msg: string) => Error) => T[];
export declare const validateFound: <T>(type: string, id: string | number, instance: T | null) => T;
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