static LinkedInProvider()
{
supportedClaimTypes.Add("id", ClaimTypes.NameIdentifier);
supportedClaimTypes.Add("formattedName", ClaimTypes.Name);
supportedClaimTypes.Add("emailAddress", ClaimTypes.Email);
supportedClaimTypes.Add("firstName", ClaimTypes.GivenName);
supportedClaimTypes.Add("lastName", ClaimTypes.Surname);
supportedClaimTypes.Add("publicProfileUrl", ClaimTypes.Webpage);
supportedClaimTypes.Add("location", ClaimTypes.Locality);
supportedClaimTypes.Add("pictureUrl", ClaimTypes.UserData);
}