What is the structure of meta JSON for createPage ?

[vrijmetse]

Sorry if I use wrong place to ask this question but I cant seem to find documentation for this. I am trying to automate page creation hence I need to know where to put the title / slugs / content etc.

So far this is what I have

mutation{
  pageBuilder{
    createPage(
      category:"static",
      meta: [
    ]
    ){
      data{
        id
        content
      }
    }
  }
}

Now I need to do the following:

1. define the content of the page . e.g number of blocks / grids / cell within.
2. define the title and slug. Is this even possible during page creation? or I need to create and then update?