Data type based on sections of website

[nandumoura]

I would like to use front matter as a site builder I am using astro to build sections like the ones below but I don't know how to make the content types in frontmatter any suggestions?

My yaml on frontmatter
sections:

• sectionType:
  type: hero
  title: Hero Section!
  text: Some text for the hero section
  imgUrl: /images/aranha.jpg
  buttonText: Click me!
• sectionType:
  type: carrossel
  images:
  - /images/arranha-ceus.jpg
  - /images/night-city.jpg