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TypeScript

/**
Escape RegExp special characters.
You can also use this to escape a string that is inserted into the middle of a regex, for example, into a character class.
@example
```
import escapeStringRegexp = require('escape-string-regexp');
const escapedString = escapeStringRegexp('How much $ for a 🦄?');
//=> 'How much \\$ for a 🦄\\?'
new RegExp(escapedString);
```
*/
declare const escapeStringRegexp: (string: string) => string;
export = escapeStringRegexp;