How do I define an input as a list of database objects?

Hi team.

I am setting up my first project and learning the ins and outs. So far I have found solutions to all my challenges. But I don't like the solution I found for this problem. I am inserting an array of events into a table. I can't seem to find a "list" field type so I can set the input rules to list[event]. Instead I am using an json object and processing it manually. This works fine but I would prefer to have the type checking done for me as part of the input checks.

What I am doing now ...

Inputs: json("events")

{
  "events": [
    {
       ... event 1 ....
    },
    {
       ... event 2 ...
    }
  ]
}

What I would prefer to be doing ...

Inputs: list[event]

[
    {
       ... event 1 ....
    },
    {
       ... event 2 ...
    }
]

Can any one suggest how to do this?