| 1 | import { ValidationOptions } from '../ValidationOptions';
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| 2 | export declare const IS_BASE64 = "isBase64";
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| 3 | /**
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| 4 | * Checks if a string is base64 encoded.
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| 5 | * If given value is not a string, then it returns false.
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| 6 | */
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| 7 | export declare function isBase64(value: unknown): boolean;
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| 8 | /**
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| 9 | * Checks if a string is base64 encoded.
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| 10 | * If given value is not a string, then it returns false.
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| 11 | */
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| 12 | export declare function IsBase64(validationOptions?: ValidationOptions): PropertyDecorator;
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