Yargs Typescript CommandModule Generics

my-command.ts

import { CommandModule, Argv, Options, ArgumentsCamelCase } from 'yargs'

export interface MyOptions extends Options {
  interactive: boolean
  env: string
  color: string
}

export class MyCommand<U extends MyOptions> implements CommandModule<{}, U> {
  public command = 'my-cmd'
  public describe = 'Just a simple generics example'

  public builder = (args: Argv): Argv<U> => {
    args.option('interactive', { boolean: true, alias: 'i', describe: 'get interactive with it!' })
    args.option('env', { string: true, alias: 'e', describe: 'Environment' })
    args.option('color', { boolean: true, describe: 'disable color', default: true })
    return args as unknown as Argv<U>
  }

  public handler = async (args: ArgumentsCamelCase<U>) => {

    // type hinting works with the following!
    console.log(
      args.color,
      args.env,
      args.interactive
    )
  }
}

import { CommandModule, Arguments, Argv } from 'yargs';

interface CommandArgs {
  arg?: string;
}

export class ConfigureCommand implements CommandModule {
  public command = '';
  public describe = '';

  public builder(args: Argv): Argv<CommandArgs> {
    return args.positional('arg', {
      describe: 'Hello world!',
      type: 'string',
    });
  }

  public handler(argv: Arguments<CommandArgs>) {
    console.log(argv);
  }
}

or

import { CommandModule, Arguments, Argv } from 'yargs';

interface CommandArgs {
  arg?: string;
}

export class ConfigureCommand implements CommandModule<{}, CommandArgs> {
  public command = '';

  public describe = '';

  public builder(args: Argv<{}>) {
    return args.positional('arg', {
      describe: 'Hello world!',
      type: 'string',
    });
  }

  public handler(argv: Arguments<CommandArgs>) {
    console.log(argv);
  }
}