module mod11 {

    prefix abc;

    namespace "urn:cesnet:mod11";

    grouping ssh {

        container ssh {

            config false;

            leaf key { type string; }

            leaf user {

                type string {

                    pattern '[a-z0-9]';

                }

            }

            leaf is_valid {

                type boolean;

                default "false";

            }

            leaf-list test {

                type string;

                max-elements 7;

            }

        }

        choice ch1 {

            case ca {

                container presence {

                    presence "enable";

                }

            }

            leaf str { type string; }

        }

        choice test {

            case ll {

                container ccc {

                    container cc {

                        leaf mandatory {

                            type uint8;

                        }

                    }

                }

            }

            container presence2 {

                presence "enable";

            }

            default ll;

        }

    }

    container server {

        uses ssh {

            refine "ssh/test" {

                reference "test";

                min-elements 10; // min-elements is bigger than max-elements

            }

        }

    }

}