export declare const EmailValidator: import("./types").Validator<string> & {
    description: "A string containing an '@' sign";
    errorMessage: "Must include an '@' sign";
} & {
    optional: false;
};
export declare const BooleanValidator: import("./types").Validator<boolean> & {
    description: "Any boolean value";
    errorMessage: "Must be '0', '1', 'false' or 'true'";
} & {
    optional: false;
};
export declare const NullableBooleanValidator: import("./types").Validator<boolean> & {
    description: "Any boolean value";
    errorMessage: "Must be '0', '1', 'false' or 'true'";
} & {
    optional: false;
};
export declare const StringValidator: import("./types").Validator<string> & {
    description: "Any string value";
    errorMessage: "Must be a valid string";
} & {
    optional: false;
};
export declare const NullableStringValidator: import("./types").Validator<string | null> & {
    description: "Any string or null value";
    errorMessage: "Must be a valid string or null";
} & {
    optional: false;
};
export declare const NonEmptyStringValidator: import("./types").Validator<string> & {
    description: "Any string value with at least one character";
    errorMessage: "Must be a string with at least one character";
} & {
    optional: false;
};
export declare const NumberValidator: import("./types").Validator<number> & {
    description: "Any numeric value";
    errorMessage: "Must be a valid number";
} & {
    optional: false;
};
export declare const NullableNumberValidator: import("./types").Validator<number | null> & {
    description: "Any numeric value";
    errorMessage: "Must be a valid number";
} & {
    optional: false;
};
export declare const BigIntValidator: import("./types").Validator<bigint> & {
    description: "Any numeric value";
    errorMessage: "Must be a valid number";
} & {
    optional: false;
};
export declare const NullableBigIntValidator: import("./types").Validator<bigint | null> & {
    description: "Any numeric value";
    errorMessage: "Must be a valid number";
} & {
    optional: false;
};
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