code: public String createAuthzHeaderForVerifyCredentialsEndpoint(String endpointUrl, String token) {
          Map<String, String> parameters = populateVerifyCredentialsEndpointAuthzHeaderParams(token);
          return signAndCreateAuthzHeader(endpointUrl, parameters);
      }
docs: Generates the Authorization header value required for a {@value TwitterConstants#TWITTER_ENDPOINT_VERIFY_CREDENTIALS}
  endpoint request. See {@link https://dev.twitter.com/rest/reference/get/account/verify_credentials} for details.
  
  @param endpointUrl
  @param token
  @return