import { ValidationRule } from './ValidationRule';
export declare const EMPTY_STRING: 'EMPTY_STRING';
export declare type EmptyString = Readonly<{
    type: 'EMPTY_STRING';
}>;
export declare const NOT_A_STRING: 'NOT_A_STRING';
export declare type NotAString = Readonly<{
    type: 'NOT_A_STRING';
    value: unknown;
}>;
export declare const DOES_NOT_CONTAIN_FLOAT: 'DOES_NOT_CONTAIN_FLOAT';
export declare type DoesNotContainFloat = Readonly<{
    type: 'DOES_NOT_CONTAIN_FLOAT';
    value: string;
}>;
export declare const Strings: {
    fromString(): ValidationRule<string, never, string, []>;
    fromUnknown(): ValidationRule<unknown, Readonly<{
        type: "NOT_A_STRING";
        value: unknown;
    }>, string, []>;
    notEmpty(): ValidationRule<string, Readonly<{
        type: "EMPTY_STRING";
    }>, string, []>;
    containsFloat(): ValidationRule<string, Readonly<{
        type: "DOES_NOT_CONTAIN_FLOAT";
        value: string;
    }>, number, []>;
};