src/GitWorkingCopy.php
public function checkoutNewBranch(string $branch, array $options = []): string
    {
        $options['b'] = true;
        return $this->checkout($branch, $options);
    }
public function checkoutNewBranch(string $branch, array $options = []): string
    {
        $options['b'] = true;
        return $this->checkout($branch, $options);
    }
Create a new branch and check it out.

This is synonymous with `git checkout -b`.

@param mixed[] $options