help[L-S12]: Invalid arguments to command `[U:params] - 1: Element Type`
  ┌─ addons/main/test.sqf:1:1
  │
1 │ params ["_var1", objNull];
  │ ^^^^^^ invalid arguments


help[L-S12]: Invalid arguments to command `[U:params] - 0: Expected Data Types`
  ┌─ addons/main/test.sqf:2:1
  │
2 │ params [["_var2", "", ""]];
  │ ^^^^^^ invalid arguments


help[L-S12]: Invalid arguments to command `[U:params] - 0: Default Value does not match declared types`
  ┌─ addons/main/test.sqf:3:1
  │
3 │ params [["_var3", objNull, [false]]];
  │ ^^^^^^ invalid arguments