Module `ValidateArgs.One`

* One argument, if the input array contains more than 1 argument - return an error

module Internal: { ... };

let flag: default:'a => empty:'a => parse:Type.parse('a) => value => Stdlib.result('a, Err.t);
let req: parse:Type.parse('a) => value => Stdlib.result('a, Err.t);
let default: parse:Type.parse('a) => default:'a => value => Stdlib.result('a, Err.t);
let opt: parse:Type.parse('a) => value => Stdlib.result(option('a), Err.t);