json_schema: {
      "$schema": "http://json-schema.org/draft-04/schema#",
      "type": "object",
      "description": "An explanation about the purpose of this instance.",
      "properties": {
          "dhcp_subnet": {
              "type": "array",
              "description": "An explanation about the purpose of this instance.",
              "items": {
                  "type": "object",
                  "description": "An explanation about the purpose of this instance.",
                  "properties": {
                      "default_lease_time": {
                          "type": "integer",
                          "description": "An explanation about the purpose of this instance.",
                          "default": 21600
                      },
                      "dhcp_range": {
                          "type": "null",
                          "description": "An explanation about the purpose of this instance.",
                          "default": null
                      },
                      "dns_server_list": {
                          "type": "string",
                          "description": "An explanation about the purpose of this instance.",
                          "default": "['127.0.0.1', '8.8.8.8']"
                      },
                      "max_lease_time": {
                          "type": "integer",
                          "description": "An explanation about the purpose of this instance.",
                          "default": 43200
                      },
                      "search_domains_list": {
                          "type": "string",
                          "description": "An explanation about the purpose of this instance.",
                          "default": "['englab.juniper.net']"
                      },
                      "subnet_address": {
                          "type": "string",
                          "description": "An explanation about the purpose of this instance.",
                          "default": "99.1.1.0"
                      },
                      "subnet_domain": {
                          "type": "string",
                          "description": "An explanation about the purpose of this instance.",
                          "default": "englab.juniper.net"
                      },
                      "subnet_gateway": {
                          "type": "string",
                          "description": "An explanation about the purpose of this instance.",
                          "default": "99.1.1.9"
                      },
                      "subnet_mask": {
                          "type": "string",
                          "description": "An explanation about the purpose of this instance.",
                          "default": "255.255.255.0"
                      }
                  },
                  "required": [
                      "subnet_address",
                      "subnet_domain",
                      "subnet_gateway",
                      "subnet_mask"
                  ]
              }
          }
      }
  }