System.Security.Claims.Claim.Clone C# (CSharp) Method

        public virtual Claim Clone()
        {
            return Clone((ClaimsIdentity)null);
        }

 private void SafeAddClaim(Claim claim)
 {
     if (claim.Subject == this)
     {
         this.m_instanceClaims.Add(claim);
     }
     else
     {
         this.m_instanceClaims.Add(claim.Clone(this));
     }
 }