Document wokwi-clock-generator and other undocumented elements

[drf5n]

I saw a wokwi-clock-generator in

• https://wokwi.com/projects/346486925565100626 urish

• https://wokwi.com/projects/359330496025635841 David LLoyd

• https://wokwi.com/projects/378438459579106305 wulfhednar

  {
  "type": "wokwi-clock-generator",
  "id": "clkgen2",
  "top": -652.8,
  "left": -249.6,
  "attrs": { "frequency": "10000" }
  },

In particular, does it have other attributes? I discovered the frequency attribute after using a google site search for finding other projects that use wokwi-clock-generator.

Are there hints on discovering this element and other less visible elements?