Custom Commands in Datapacks

With the new addition of Function Macros, we can have variables, something commands usually have, it's a good opportunity to add custom commands!

{
  "command": "jump", #command name /jump
  "function": "ns:function", #function to run on command
  "variables": {
    "required": [ #required variables
      {
        "0": {
          "name": "selector_variable",
          "type": "selector",
          "limit": 1 #if limit is provided, selector must only detect up to the maximum limit of entities
        },
        "1": {
          "name": "text_variable",
          "type": "text"
        },
        "2": {
          "name": "num_variable",
          "type": "number"
        }
      }
    ],
    "optional": [ #optional variables
      {
        "0": {
          "name": "obj_variable",
          "type": "object"
        }
      }
    ]
  },
  "op": false, #if true, overrides the whitelist and blacklist, making it for op only, default false
  "whitelist": [ #list of usernames and teams that can use command
    "username",
    "#team"
  ],
  "blacklist": [ #list of usernames and teams that can't use command
    "username",
    "#team"
  ],
  "priority": 10 #the higher the number, the bigger the priority, in case it overrides vanilla commands or other datapack commands
}