#!/usr/bin/python
# -*- coding: utf-8 -*-
# Copyright 2019 Red Hat
# GNU General Public License v3.0+
# (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)

#############################################
#                WARNING                    #
#############################################
#
# This file is auto generated by the resource
#   module builder playbook.
#
# Do not edit this file manually.
#
# Changes to this file will be over written
#   by the resource module builder.
#
# Changes should be made in the model used to
#   generate this file or in the resource module
#   builder template.
#
#############################################

"""
The module file for vyos_static_routes
"""

from __future__ import absolute_import, division, print_function

__metaclass__ = type


DOCUMENTATION = """
module: vyos_static_routes
short_description: Static routes resource module
description: This module manages attributes of static routes on VyOS network devices.
version_added: 1.0.0
notes:
- Tested against VyOS 1.1.8 (helium).
- This module works with connection C(ansible.netcommon.network_cli). See L(the VyOS OS Platform Options,../network/user_guide/platform_vyos.html).
author:
- Rohit Thakur (@rohitthakur2590)
options:
  config:
    description: A provided static route configuration.
    type: list
    elements: dict
    suboptions:
      address_families:
        description: A dictionary specifying the address family to which the static
          route(s) belong.
        type: list
        elements: dict
        suboptions:
          afi:
            description:
            - Specifies the type of route.
            type: str
            choices:
            - ipv4
            - ipv6
            required: true
          routes:
            description: A dictionary that specify the static route configurations.
            type: list
            elements: dict
            suboptions:
              dest:
                description:
                - An IPv4/v6 address in CIDR notation that specifies the destination
                  network for the static route.
                type: str
                required: true
              blackhole_config:
                description:
                - Configured to silently discard packets.
                type: dict
                suboptions:
                  type:
                    description:
                    - This is to configure only blackhole.
                    type: str
                  distance:
                    description:
                    - Distance for the route.
                    type: int
              next_hops:
                description:
                - Next hops to the specified destination.
                type: list
                elements: dict
                suboptions:
                  forward_router_address:
                    description:
                    - The IP address of the next hop that can be used to reach the
                      destination network.
                    type: str
                    required: true
                  enabled:
                    description:
                    - Disable IPv4/v6 next-hop static route.
                    type: bool
                  admin_distance:
                    description:
                    - Distance value for the route.
                    type: int
                  interface:
                    description:
                    - Name of the outgoing interface.
                    type: str
  running_config:
    description:
    - This option is used only with state I(parsed).
    - The value of this option should be the output received from the VyOS device
      by executing the command B(show configuration commands | grep static route).
    - The state I(parsed) reads the configuration from C(running_config) option and
      transforms it into Ansible structured data as per the resource module's argspec
      and the value is then returned in the I(parsed) key within the result.
    type: str
  state:
    description:
    - The state of the configuration after module completion.
    type: str
    choices:
    - merged
    - replaced
    - overridden
    - deleted
    - gathered
    - rendered
    - parsed
    default: merged
"""
EXAMPLES = """
# Using merged
#
# Before state:
# -------------
#
# vyos@vyos:~$ show configuration  commands | grep static
#
- name: Merge the provided configuration with the existing running configuration
  vyos.vyos.vyos_static_routes:
    config:
    - address_families:
      - afi: ipv4
        routes:
        - dest: 192.0.2.32/28
          blackhole_config:
            type: blackhole
          next_hops:
          - forward_router_address: 192.0.2.6
          - forward_router_address: 192.0.2.7
    - address_families:
      - afi: ipv6
        routes:
        - dest: 2001:db8:1000::/36
          blackhole_config:
            distance: 2
          next_hops:
          - forward_router_address: 2001:db8:2000:2::1
          - forward_router_address: 2001:db8:2000:2::2
    state: merged
#
#
# -------------------------
# Module Execution Result
# -------------------------
#
# before": []
#
#    "commands": [
#        "set protocols static route 192.0.2.32/28",
#        "set protocols static route 192.0.2.32/28 blackhole",
#        "set protocols static route 192.0.2.32/28 next-hop '192.0.2.6'",
#        "set protocols static route 192.0.2.32/28 next-hop '192.0.2.7'",
#        "set protocols static route6 2001:db8:1000::/36",
#        "set protocols static route6 2001:db8:1000::/36 blackhole distance '2'",
#        "set protocols static route6 2001:db8:1000::/36 next-hop '2001:db8:2000:2::1'",
#        "set protocols static route6 2001:db8:1000::/36 next-hop '2001:db8:2000:2::2'"
#    ]
#
# "after": [
#        {
#            "address_families": [
#                {
#                    "afi": "ipv4",
#                    "routes": [
#                        {
#                            "blackhole_config": {
#                                "type": "blackhole"
#                            },
#                            "dest": "192.0.2.32/28",
#                            "next_hops": [
#                                {
#                                    "forward_router_address": "192.0.2.6"
#                                },
#                                {
#                                    "forward_router_address": "192.0.2.7"
#                                }
#                            ]
#                        }
#                    ]
#                },
#                {
#                    "afi": "ipv6",
#                    "routes": [
#                        {
#                            "blackhole_config": {
#                                "distance": 2
#                            },
#                            "dest": "2001:db8:1000::/36",
#                            "next_hops": [
#                                {
#                                    "forward_router_address": "2001:db8:2000:2::1"
#                                },
#                                {
#                                    "forward_router_address": "2001:db8:2000:2::2"
#                                }
#                            ]
#                        }
#                    ]
#                }
#            ]
#        }
#    ]
#
# After state:
# -------------
#
# vyos@vyos:~$ show configuration commands| grep static
# set protocols static route 192.0.2.32/28 'blackhole'
# set protocols static route 192.0.2.32/28 next-hop '192.0.2.6'
# set protocols static route 192.0.2.32/28 next-hop '192.0.2.7'
# set protocols static route6 2001:db8:1000::/36 blackhole distance '2'
# set protocols static route6 2001:db8:1000::/36 next-hop '2001:db8:2000:2::1'
# set protocols static route6 2001:db8:1000::/36 next-hop '2001:db8:2000:2::2'


# Using replaced
#
# Before state:
# -------------
#
# vyos@vyos:~$ show configuration commands| grep static
# set protocols static route 192.0.2.32/28 'blackhole'
# set protocols static route 192.0.2.32/28 next-hop '192.0.2.6'
# set protocols static route 192.0.2.32/28 next-hop '192.0.2.7'
# set protocols static route 192.0.2.33/28 'blackhole'
# set protocols static route 192.0.2.33/28 next-hop '192.0.2.3'
# set protocols static route 192.0.2.33/28 next-hop '192.0.2.4'
# set protocols static route6 2001:db8:1000::/36 blackhole distance '2'
# set protocols static route6 2001:db8:1000::/36 next-hop '2001:db8:2000:2::1'
# set protocols static route6 2001:db8:1000::/36 next-hop '2001:db8:2000:2::2'
#
- name: Replace device configurations of listed static routes with provided configurations
  vyos.vyos.vyos_static_routes:
    config:
    - address_families:
      - afi: ipv4
        routes:
        - dest: 192.0.2.32/28
          blackhole_config:
            distance: 2
          next_hops:
          - forward_router_address: 192.0.2.7
            enabled: false
          - forward_router_address: 192.0.2.9
    state: replaced
#
#
# -------------------------
# Module Execution Result
# -------------------------
#
#    "before": [
#        {
#            "address_families": [
#                {
#                    "afi": "ipv4",
#                    "routes": [
#                        {
#                            "blackhole_config": {
#                                "type": "blackhole"
#                            },
#                            "dest": "192.0.2.32/28",
#                            "next_hops": [
#                                {
#                                    "forward_router_address": "192.0.2.6"
#                                },
#                                {
#                                    "forward_router_address": "192.0.2.7"
#                                }
#                            ]
#                        },
#                        {
#                            "blackhole_config": {
#                                "type": "blackhole"
#                            },
#                            "dest": "192.0.2.33/28",
#                            "next_hops": [
#                                {
#                                    "forward_router_address": "192.0.2.3"
#                                },
#                                {
#                                    "forward_router_address": "192.0.2.4"
#                                }
#                            ]
#                        }
#                    ]
#                },
#                {
#                    "afi": "ipv6",
#                    "routes": [
#                        {
#                            "blackhole_config": {
#                                "distance": 2
#                            },
#                            "dest": "2001:db8:1000::/36",
#                            "next_hops": [
#                                {
#                                    "forward_router_address": "2001:db8:2000:2::1"
#                                },
#                                {
#                                    "forward_router_address": "2001:db8:2000:2::2"
#                                }
#                            ]
#                        }
#                    ]
#                }
#            ]
#        }
#    ]
#
# "commands": [
#        "delete protocols static route 192.0.2.32/28 next-hop '192.0.2.6'",
#        "delete protocols static route 192.0.2.32/28 next-hop '192.0.2.7'",
#        "set protocols static route 192.0.2.32/28 next-hop 192.0.2.7 'disable'",
#        "set protocols static route 192.0.2.32/28 next-hop '192.0.2.7'",
#        "set protocols static route 192.0.2.32/28 next-hop '192.0.2.9'",
#        "set protocols static route 192.0.2.32/28 blackhole distance '2'"
#    ]
#
#    "after": [
#        {
#            "address_families": [
#                {
#                    "afi": "ipv4",
#                    "routes": [
#                        {
#                            "blackhole_config": {
#                                "distance": 2
#                            },
#                            "dest": "192.0.2.32/28",
#                            "next_hops": [
#                                {
#                                    "enabled": false,
#                                    "forward_router_address": "192.0.2.7"
#                                },
#                                {
#                                    "forward_router_address": "192.0.2.9"
#                                }
#                            ]
#                        },
#                        {
#                            "blackhole_config": {
#                                "type": "blackhole"
#                            },
#                            "dest": "192.0.2.33/28",
#                            "next_hops": [
#                                {
#                                    "forward_router_address": "192.0.2.3"
#                                },
#                                {
#                                    "forward_router_address": "192.0.2.4"
#                                }
#                            ]
#                        }
#                    ]
#                },
#                {
#                    "afi": "ipv6",
#                    "routes": [
#                        {
#                            "blackhole_config": {
#                                "distance": 2
#                            },
#                            "dest": "2001:db8:1000::/36",
#                            "next_hops": [
#                                {
#                                    "forward_router_address": "2001:db8:2000:2::1"
#                                },
#                                {
#                                    "forward_router_address": "2001:db8:2000:2::2"
#                                }
#                            ]
#                        }
#                    ]
#                }
#            ]
#        }
#    ]
#
# After state:
# -------------
#
# vyos@vyos:~$ show configuration commands| grep static
# set protocols static route 192.0.2.32/28 blackhole distance '2'
# set protocols static route 192.0.2.32/28 next-hop 192.0.2.7 'disable'
# set protocols static route 192.0.2.32/28 next-hop '192.0.2.9'
# set protocols static route 192.0.2.33/28 'blackhole'
# set protocols static route 192.0.2.33/28 next-hop '192.0.2.3'
# set protocols static route 192.0.2.33/28 next-hop '192.0.2.4'
# set protocols static route6 2001:db8:1000::/36 blackhole distance '2'
# set protocols static route6 2001:db8:1000::/36 next-hop '2001:db8:2000:2::1'
# set protocols static route6 2001:db8:1000::/36 next-hop '2001:db8:2000:2::2'


# Using overridden
#
# Before state
# --------------
#
# vyos@vyos:~$ show configuration commands| grep static
# set protocols static route 192.0.2.32/28 blackhole distance '2'
# set protocols static route 192.0.2.32/28 next-hop 192.0.2.7 'disable'
# set protocols static route 192.0.2.32/28 next-hop '192.0.2.9'
# set protocols static route6 2001:db8:1000::/36 blackhole distance '2'
# set protocols static route6 2001:db8:1000::/36 next-hop '2001:db8:2000:2::1'
# set protocols static route6 2001:db8:1000::/36 next-hop '2001:db8:2000:2::2'
#
- name: Overrides all device configuration with provided configuration
  vyos.vyos.vyos_static_routes:
    config:
    - address_families:
      - afi: ipv4
        routes:
        - dest: 198.0.2.48/28
          next_hops:
          - forward_router_address: 192.0.2.18
    state: overridden
#
#
# -------------------------
# Module Execution Result
# -------------------------
#
# "before": [
#        {
#            "address_families": [
#                {
#                    "afi": "ipv4",
#                    "routes": [
#                        {
#                            "blackhole_config": {
#                                "distance": 2
#                            },
#                            "dest": "192.0.2.32/28",
#                            "next_hops": [
#                                {
#                                    "enabled": false,
#                                    "forward_router_address": "192.0.2.7"
#                                },
#                                {
#                                    "forward_router_address": "192.0.2.9"
#                                }
#                            ]
#                        }
#                    ]
#                },
#                {
#                    "afi": "ipv6",
#                    "routes": [
#                        {
#                            "blackhole_config": {
#                                "distance": 2
#                            },
#                            "dest": "2001:db8:1000::/36",
#                            "next_hops": [
#                                {
#                                    "forward_router_address": "2001:db8:2000:2::1"
#                                },
#                                {
#                                    "forward_router_address": "2001:db8:2000:2::2"
#                                }
#                            ]
#                        }
#                    ]
#                }
#            ]
#        }
#    ]
#
#    "commands": [
#        "delete protocols static route 192.0.2.32/28",
#        "delete protocols static route6 2001:db8:1000::/36",
#        "set protocols static route 198.0.2.48/28",
#        "set protocols static route 198.0.2.48/28 next-hop '192.0.2.18'"
#
#
#    "after": [
#        {
#            "address_families": [
#                {
#                    "afi": "ipv4",
#                    "routes": [
#                        {
#                            "dest": "198.0.2.48/28",
#                            "next_hops": [
#                                {
#                                    "forward_router_address": "192.0.2.18"
#                                }
#                            ]
#                        }
#                    ]
#                }
#            ]
#        }
#    ]
#
#
# After state
# ------------
#
# vyos@vyos:~$ show configuration commands| grep static
# set protocols static route 198.0.2.48/28 next-hop '192.0.2.18'


# Using deleted to delete static route based on afi
#
# Before state
# -------------
#
# vyos@vyos:~$ show configuration commands| grep static
# set protocols static route 192.0.2.32/28 'blackhole'
# set protocols static route 192.0.2.32/28 next-hop '192.0.2.6'
# set protocols static route 192.0.2.32/28 next-hop '192.0.2.7'
# set protocols static route6 2001:db8:1000::/36 blackhole distance '2'
# set protocols static route6 2001:db8:1000::/36 next-hop '2001:db8:2000:2::1'
# set protocols static route6 2001:db8:1000::/36 next-hop '2001:db8:2000:2::2'
#
- name: Delete static route based on afi.
  vyos.vyos.vyos_static_routes:
    config:
    - address_families:
      - afi: ipv4
      - afi: ipv6
    state: deleted
#
#
# ------------------------
# Module Execution Results
# ------------------------
#
#    "before": [
#        {
#            "address_families": [
#                {
#                    "afi": "ipv4",
#                    "routes": [
#                        {
#                            "blackhole_config": {
#                                "type": "blackhole"
#                            },
#                            "dest": "192.0.2.32/28",
#                            "next_hops": [
#                                {
#                                    "forward_router_address": "192.0.2.6"
#                                },
#                                {
#                                    "forward_router_address": "192.0.2.7"
#                                }
#                            ]
#                        }
#                    ]
#                },
#                {
#                    "afi": "ipv6",
#                    "routes": [
#                        {
#                            "blackhole_config": {
#                                "distance": 2
#                            },
#                            "dest": "2001:db8:1000::/36",
#                            "next_hops": [
#                                {
#                                    "forward_router_address": "2001:db8:2000:2::1"
#                                },
#                                {
#                                    "forward_router_address": "2001:db8:2000:2::2"
#                                }
#                            ]
#                        }
#                    ]
#                }
#            ]
#        }
#    ]
#    "commands": [
#       "delete protocols static route",
#       "delete protocols static route6"
#    ]
#
# "after": []
# After state
# ------------
# vyos@vyos# run show configuration commands | grep static
# set protocols 'static'


# Using deleted to delete all the static routes when passes config is empty
#
# Before state
# -------------
#
# vyos@vyos:~$ show configuration commands| grep static
# set protocols static route 192.0.2.32/28 'blackhole'
# set protocols static route 192.0.2.32/28 next-hop '192.0.2.6'
# set protocols static route 192.0.2.32/28 next-hop '192.0.2.7'
# set protocols static route6 2001:db8:1000::/36 blackhole distance '2'
# set protocols static route6 2001:db8:1000::/36 next-hop '2001:db8:2000:2::1'
# set protocols static route6 2001:db8:1000::/36 next-hop '2001:db8:2000:2::2'
#
- name: Delete all the static routes.
  vyos.vyos.vyos_static_routes:
    config:
    state: deleted
#
#
# ------------------------
# Module Execution Results
# ------------------------
#
#    "before": [
#        {
#            "address_families": [
#                {
#                    "afi": "ipv4",
#                    "routes": [
#                        {
#                            "blackhole_config": {
#                                "type": "blackhole"
#                            },
#                            "dest": "192.0.2.32/28",
#                            "next_hops": [
#                                {
#                                    "forward_router_address": "192.0.2.6"
#                                },
#                                {
#                                    "forward_router_address": "192.0.2.7"
#                                }
#                            ]
#                        }
#                    ]
#                },
#                {
#                    "afi": "ipv6",
#                    "routes": [
#                        {
#                            "blackhole_config": {
#                                "distance": 2
#                            },
#                            "dest": "2001:db8:1000::/36",
#                            "next_hops": [
#                                {
#                                    "forward_router_address": "2001:db8:2000:2::1"
#                                },
#                                {
#                                    "forward_router_address": "2001:db8:2000:2::2"
#                                }
#                            ]
#                        }
#                    ]
#                }
#            ]
#        }
#    ]
#    "commands": [
#       "delete protocols static route",
#       "delete protocols static route6"
#    ]
#
# "after": []
# After state
# ------------
# vyos@vyos# run show configuration commands | grep static
# set protocols 'static'


# Using rendered
#
#
- name: Render the commands for provided  configuration
  vyos.vyos.vyos_static_routes:
    config:
    - address_families:
      - afi: ipv4
        routes:
        - dest: 192.0.2.32/28
          blackhole_config:
            type: blackhole
          next_hops:
          - forward_router_address: 192.0.2.6
          - forward_router_address: 192.0.2.7
    - address_families:
      - afi: ipv6
        routes:
        - dest: 2001:db8:1000::/36
          blackhole_config:
            distance: 2
          next_hops:
          - forward_router_address: 2001:db8:2000:2::1
          - forward_router_address: 2001:db8:2000:2::2
    state: rendered
#
#
# -------------------------
# Module Execution Result
# -------------------------
#
#
# "rendered": [
#        "set protocols static route 192.0.2.32/28",
#        "set protocols static route 192.0.2.32/28 blackhole",
#        "set protocols static route 192.0.2.32/28 next-hop '192.0.2.6'",
#        "set protocols static route 192.0.2.32/28 next-hop '192.0.2.7'",
#        "set protocols static route6 2001:db8:1000::/36",
#        "set protocols static route6 2001:db8:1000::/36 blackhole distance '2'",
#        "set protocols static route6 2001:db8:1000::/36 next-hop '2001:db8:2000:2::1'",
#        "set protocols static route6 2001:db8:1000::/36 next-hop '2001:db8:2000:2::2'"
#    ]


# Using parsed
#
#
- name: Parse the provided running configuration
  vyos.vyos.vyos_static_routes:
    running_config:
      "set protocols static route 192.0.2.32/28 'blackhole'
       set protocols static route 192.0.2.32/28 next-hop '192.0.2.6'
       set protocols static route 192.0.2.32/28 next-hop '192.0.2.7'
       set protocols static route6 2001:db8:1000::/36 blackhole distance '2'
       set protocols static route6 2001:db8:1000::/36 next-hop '2001:db8:2000:2::1'
       set protocols static route6 2001:db8:1000::/36 next-hop '2001:db8:2000:2::2'"
    state: parsed
#
#
# -------------------------
# Module Execution Result
# -------------------------
#
#
# "parsed": [
#        {
#            "address_families": [
#                {
#                    "afi": "ipv4",
#                    "routes": [
#                        {
#                            "blackhole_config": {
#                                "distance": 2
#                            },
#                            "dest": "192.0.2.32/28",
#                            "next_hops": [
#                                {
#                                    "forward_router_address": "2001:db8:2000:2::2"
#                                }
#                            ]
#                        }
#                    ]
#                },
#                {
#                    "afi": "ipv6",
#                    "routes": [
#                        {
#                            "blackhole_config": {
#                                "distance": 2
#                            },
#                            "dest": "2001:db8:1000::/36",
#                            "next_hops": [
#                                {
#                                    "forward_router_address": "2001:db8:2000:2::2"
#                                }
#                            ]
#                        }
#                    ]
#                }
#            ]
#        }
#    ]


# Using gathered
#
# Before state:
# -------------
#
# vyos@vyos:~$ show configuration commands| grep static
# set protocols static route 192.0.2.32/28 'blackhole'
# set protocols static route 192.0.2.32/28 next-hop '192.0.2.6'
# set protocols static route 192.0.2.32/28 next-hop '192.0.2.7'
# set protocols static route6 2001:db8:1000::/36 blackhole distance '2'
# set protocols static route6 2001:db8:1000::/36 next-hop '2001:db8:2000:2::1'
# set protocols static route6 2001:db8:1000::/36 next-hop '2001:db8:2000:2::2'
#
- name: Gather listed static routes with provided configurations
  vyos.vyos.vyos_static_routes:
    config:
    state: gathered
#
#
# -------------------------
# Module Execution Result
# -------------------------
#
#    "gathered": [
#        {
#            "address_families": [
#                {
#                    "afi": "ipv4",
#                    "routes": [
#                        {
#                            "blackhole_config": {
#                                "type": "blackhole"
#                            },
#                            "dest": "192.0.2.32/28",
#                            "next_hops": [
#                                {
#                                    "forward_router_address": "192.0.2.6"
#                                },
#                                {
#                                    "forward_router_address": "192.0.2.7"
#                                }
#                            ]
#                        }
#                    ]
#                },
#                {
#                    "afi": "ipv6",
#                    "routes": [
#                        {
#                            "blackhole_config": {
#                                "distance": 2
#                            },
#                            "dest": "2001:db8:1000::/36",
#                            "next_hops": [
#                                {
#                                    "forward_router_address": "2001:db8:2000:2::1"
#                                },
#                                {
#                                    "forward_router_address": "2001:db8:2000:2::2"
#                                }
#                            ]
#                        }
#                    ]
#                }
#            ]
#        }
#    ]
#
#
# After state:
# -------------
#
# vyos@vyos:~$ show configuration commands| grep static
# set protocols static route 192.0.2.32/28 'blackhole'
# set protocols static route 192.0.2.32/28 next-hop '192.0.2.6'
# set protocols static route 192.0.2.32/28 next-hop '192.0.2.7'
# set protocols static route6 2001:db8:1000::/36 blackhole distance '2'
# set protocols static route6 2001:db8:1000::/36 next-hop '2001:db8:2000:2::1'
# set protocols static route6 2001:db8:1000::/36 next-hop '2001:db8:2000:2::2'


"""
RETURN = """
before:
  description: The configuration prior to the model invocation.
  returned: always
  type: list
  sample: >
    The configuration returned will always be in the same format
     of the parameters above.
after:
  description: The resulting configuration model invocation.
  returned: when changed
  type: list
  sample: >
    The configuration returned will always be in the same format
     of the parameters above.
commands:
  description: The set of commands pushed to the remote device.
  returned: always
  type: list
  sample:
    - "set protocols static route 192.0.2.32/28 next-hop '192.0.2.6'"
    - "set protocols static route 192.0.2.32/28 'blackhole'"
"""


from ansible.module_utils.basic import AnsibleModule

from ansible_collections.vyos.vyos.plugins.module_utils.network.vyos.argspec.static_routes.static_routes import (
    Static_routesArgs,
)
from ansible_collections.vyos.vyos.plugins.module_utils.network.vyos.config.static_routes.static_routes import (
    Static_routes,
)


def main():
    """
    Main entry point for module execution

    :returns: the result form module invocation
    """
    required_if = [
        ("state", "merged", ("config",)),
        ("state", "replaced", ("config",)),
        ("state", "rendered", ("config",)),
        ("state", "overridden", ("config",)),
        ("state", "parsed", ("running_config",)),
    ]
    mutually_exclusive = [("config", "running_config")]

    module = AnsibleModule(
        argument_spec=Static_routesArgs.argument_spec,
        required_if=required_if,
        supports_check_mode=True,
        mutually_exclusive=mutually_exclusive,
    )
    result = Static_routes(module).execute_module()
    module.exit_json(**result)


if __name__ == "__main__":
    main()
