// https://w3c.github.io/trusted-types/dist/spec/#typedefdef-trustedtype
typedef (TrustedHTML or TrustedScript or TrustedScriptURL) TrustedType;

// https://w3c.github.io/trusted-types/dist/spec/#trusted-type-policy
[Exposed=(Window,Worker)]
interface TrustedTypePolicy {
    readonly attribute Utf16DOMString name;
    TrustedHTML createHTML(Utf16DOMString input, any... arguments);
    TrustedScript createScript(Utf16DOMString input, any... arguments);
    TrustedScriptURL createScriptURL(Utf16DOMString input, any... arguments);
};

// https://w3c.github.io/trusted-types/dist/spec/#trusted-type-policy-options
dictionary TrustedTypePolicyOptions {
    CreateHTMLCallback createHTML;
    CreateScriptCallback createScript;
    CreateScriptURLCallback createScriptURL;
};
callback CreateHTMLCallback = Utf16DOMString? (Utf16DOMString input, any... arguments);
callback CreateScriptCallback = Utf16DOMString? (Utf16DOMString input, any... arguments);
callback CreateScriptURLCallback = Utf16USVString? (Utf16DOMString input, any... arguments);