PolicyStatement
Represents the statement of a  CodeGroup describing the permissions and other information that apply to code with a particular set of evidence. This class cannot be inherited.
                namespace System.Security.Policy
{
    public sealed class PolicyStatement : ISecurityEncodable, ISecurityPolicyEncodable
    {
        public PolicyStatementAttribute Attributes { get; set; }
        public string AttributeString => null;
        public PermissionSet PermissionSet { get; set; }
        public PolicyStatement(PermissionSet permSet)
        {
        }
        public PolicyStatement(PermissionSet permSet, PolicyStatementAttribute attributes)
        {
        }
        public PolicyStatement Copy()
        {
            return this;
        }
        public override bool Equals(object o)
        {
            return base.Equals(o);
        }
        public void FromXml(SecurityElement et)
        {
        }
        public void FromXml(SecurityElement et, PolicyLevel level)
        {
        }
        public override int GetHashCode()
        {
            return base.GetHashCode();
        }
        public SecurityElement ToXml()
        {
            return null;
        }
        public SecurityElement ToXml(PolicyLevel level)
        {
            return null;
        }
    }
}