Add a public-key to a ~/.ssh/authorized_keys file

def ssh_invite(ctx, code_length, user, **kwargs):
    """
    Add a public-key to a ~/.ssh/authorized_keys file
    """
    for name, value in kwargs.items():
        setattr(ctx.obj, name, value)
    from . import cmd_ssh
    ctx.obj.code_length = code_length
    ctx.obj.ssh_user = user
    return go(cmd_ssh.invite, ctx.obj)