raw details (from release v2.2.3):
{
"name": "dev_halt_at_slot",
"properties": {
"long": "dev-halt-at-slot",
"value_name": "SLOT",
"validator": "is_slot",
"takes_value": "true",
"help": "Halt the validator when it reaches the given slot"
},
"isDeprecated": false
}