export declare const MX_USERNAME_PREFIX = "@";
export declare const MX_ROOM_PREFIX = "#";
export declare const MX_ALIAS_PREFIX = "+";
/**
 * returns the first (non-sigil) character of 'name',
 * converted to uppercase
 * @param {string} name
 * @return {string} the first letter
 */
export declare function getInitialLetter(name: string): string;
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