text: // @flow
  
  import type { RequestHeader } from '../../models/request';
  
  export function getBasicAuthHeader(
    username: ?string,
    password: ?string
  ): RequestHeader {
    const name = 'Authorization';
    const header = `${username || ''}:${password || ''}`;
    const authString = Buffer.from(header, 'utf8').toString('base64');
    const value = `Basic ${authString}`;
    return { name, value };
  }
  