mapError (XINGError "REQUIRED_PARAMETER_MISSING" _)     = OAuthError "Required parameter missing. Should never have happened."
mapError (XINGError "REQUIRED_PARAMETER_MISSING" _)     = OAuthError "Required parameter missing. Should never have happened."
mapError (XINGError "REQUIRED_PARAMETER_MISSING" _)     = OAuthError "Required parameter missing. Should never have happened."