| 1 | /**
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| 2 | * @file for file processing
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| 3 | */
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| 4 | /// <reference types="node" />
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| 5 | /**
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| 6 | * create unique name file
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| 7 | *
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| 8 | * @param {string} template template string for file name
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| 9 | * @param {Function} [callback]
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| 10 | * @return {Promise}
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| 11 | */
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| 12 | export declare function createFile(template: string, callback?: (err: NodeJS.ErrnoException | null, filename: string | null) => void): undefined | Promise<string | null>;
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| 13 | /**
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| 14 | * sync version createFile
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| 15 | *
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| 16 | * @param {string} template template string for file name
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| 17 | * @throws {Error} if caught error
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| 18 | * @return {string} filename
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| 19 | */
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| 20 | export declare function createFileSync(template: string): string;
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