import type { Express } from 'express-serve-static-core';
/**
 * Enable case sensitivity. When enabled, "/Foo" and "/foo" are different
 * routes. When disabled, "/Foo" and "/foo" are treated the same.
 * @param app The Express app to disable the header on.
 */
export declare const enableCaseSensitiveRouting: (app: Express) => void;
/**
 * Disable case sensitivity. When enabled, "/Foo" and "/foo" are different
 * routes. When disabled, "/Foo" and "/foo" are treated the same.
 * @param app The Express app to disable the header on.
 */
export declare const disableCaseSensitiveRouting: (app: Express) => void;
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