public string Transform(string s)
        {
            if (s == null)
            {
                return(null);
            }
            var tenantId = Finder.GetTenantIdAsync().ExecuteSynchronously();

            if (Env != null)
            {
                s = s.Replace(CommonTerms.ToStringReplacementToken(CommonTerms.Env), Env.EnvironmentName);
                s = Replace(s, Env as IEnumerable <KeyValuePair <string, object> >);
            }
            s = s.Replace(CommonTerms.ToStringReplacementToken(CommonTerms.TenantId), tenantId.ToString());
            s = Replace(s, Finder as IEnumerable <KeyValuePair <string, object> >);
            return(s);
        }