{
            "version": "2.0",
            "metadata": {
                "apiVersion": "2018-08-31",
                "endpointPrefix": "fooendpoint",
                "jsonVersion": "1.1",
                "protocol": "json",
                "serviceAbbreviation": "TDES",
                "serviceId": "TDEService",
                "serviceFullName": "TestEndpointDiscoveryService",
                "signatureVersion": "v4",
                "signingName": "test-discovery-endpoint",
                "targetPrefix": "test-discovery-endpoint"
            },
            "operations": {
                "DescribeEndpoints": {
                    "name": "DescribeEndpoints",
                    "http": {
                        "method": "POST",
                        "requestUri": "/"
                    },
                    "input": {"shape": "DescribeEndpointsRequest"},
                    "output": {"shape": "DescribeEndpointsResponse"},
                    "endpointoperation": true
                },
                "TestDiscoveryRequired": {
                    "name": "TestDiscoveryRequired",
                    "http": {
                        "method": "POST",
                        "requestUri": "/"
                    },
                    "input": {"shape": "TestDiscoveryIdsRequest"},
                    "output": {"shape": "EmptyStruct"},
                    "endpointdiscovery": {"required": true}
                },
                "TestDiscoveryOptional": {
                    "name": "TestDiscoveryOptional",
                    "http": {
                        "method": "POST",
                        "requestUri": "/"
                    },
                    "input": {"shape": "TestDiscoveryIdsRequest"},
                    "output": {"shape": "EmptyStruct"},
                    "endpointdiscovery": {}
                },
                "TestDiscovery": {
                    "name": "TestDiscovery",
                    "http": {
                        "method": "POST",
                        "requestUri": "/"
                    },
                    "input": {"shape": "EmptyStruct"},
                    "output": {"shape": "EmptyStruct"},
                    "endpointdiscovery": {}
                }
            },
            "shapes": {
               "Boolean": {"type": "boolean"},
                "DescribeEndpointsRequest": {
                    "type": "structure",
                    "members": {
                        "Operation": {"shape": "String"},
                        "Identifiers": {"shape": "Identifiers"}
                    }
                },
                "DescribeEndpointsResponse": {
                    "type": "structure",
                    "required": ["Endpoints"],
                    "members": {
                        "Endpoints": {"shape": "Endpoints"}
                    }
                },
                "Endpoint": {
                    "type": "structure",
                    "required": [
                        "Address",
                        "CachePeriodInMinutes"
                    ],
                    "members": {
                        "Address": {"shape": "String"},
                        "CachePeriodInMinutes": {"shape": "Long"}
                    }
                },
                "Endpoints": {
                    "type": "list",
                    "member": {"shape": "Endpoint"}
                },
                "Identifiers": {
                    "type": "map",
                    "key": {"shape": "String"},
                    "value": {"shape": "String"}
                },
                "Long": {"type": "long"},
                "String": {"type": "string"},
                "TestDiscoveryIdsRequest": {
                    "type": "structure",
                    "required": ["Foo"],
                    "members": {
                        "Foo": {
                            "shape": "String",
                            "endpointdiscoveryid": true
                        },
                        "Baz": {"shape": "String"},
                        "Empty": {"shape": "EmptyStruct"}
                    }
                },
                "EmptyStruct": {
                    "type": "structure",
                    "members": {}
                },
                "Nested": {
                    "type": "structure",
                    "required": "Bar",
                    "members": {
                        "Bar": {
                            "shape": "String",
                            "endpointdiscoveryid": true
                        }
                    }
                }
            }
        }