SayStuff

class SayStuff {
    getInfo() {
        return {
            id: "SayStuff",
            name: "Say Stuff",
            blocks: [
                {
                    opcode: "getPi",
                    blockType: "reporter",
                    text: "pi"
                }
            ]
        };
    }

    getPi() {
       return Math.PI;
    }
}

Scratch.extensions.register(new SayStuff());