how do I implement in .net core Response.ContentEncoding = Encoding.GetEncoding("ISO-8859-1"); Response.Charset = "ISO-8859-1"; Response.Write(html);

Question

        Response.Clear();
        Response.ContentEncoding = Encoding.GetEncoding("ISO-8859-1");
        Response.HeaderEncoding = Encoding.GetEncoding("ISO-8859-1");
        Response.Charset = "ISO-8859-1";            
        Response.Write(html);

How do I Implement these things in .net core