Why doesn't GHResponse and its fields have get and set methods?

[17631553844]

Thanks in advance.
How can I get the details in ghresponse?
I can’t get some key information, such as the latitude and longitude set in the path information
The data obtained by my front end is as follows

    	"all": [{
    		"ascend": 0.0,
    		"debugInfo": ", algoInit:0.007088s, dijkstrabi|ch-routing:0.0051646s, extract time:4.199E-4;visited nodes sum: 10;, algoInit:0.007088s, dijkstrabi|ch-routing:0.0051646s, extract time:4.199E-4;visited nodes sum: 10, simplify (5->5)",
    		"descend": 0.0,
    		"description": [],
    		"distance": 11.167965813996974,
    		"errors": [],
    		"impossible": false,
    		"instructions": [{
    			"annotation": {
    				"empty": true,
    				"importance": 0,
    				"message": ""
    			},
    			"distance": 1.5499658139969745,
    			"extraInfoJSON": {
    				"heading": 0.0
    			},
    			"length": 1,
    			"name": "",
    			"points": {
    				"dimension": 2,
    				"empty": false,
    				"immutable": false,
    				"size": 1
    			},
    			"sign": 0,
    			"time": 309
    		}, {
    			"annotation": {
    				"empty": true,
    				"importance": 0,
    				"message": ""
    			},
    			"distance": 4.047,
    			"extraInfoJSON": {},
    			"length": 1,
    			"name": "",
    			"points": {
    				"dimension": 2,
    				"empty": false,
    				"immutable": false,
    				"size": 1
    			},
    			"sign": 2,
    			"time": 809
    		}, {
    			"annotation": {
    				"empty": true,
    				"importance": 0,
    				"message": ""
    			},
    			"distance": 5.571,
    			"extraInfoJSON": {},
    			"length": 1,
    			"name": "",
    			"points": {
    				"dimension": 2,
    				"empty": false,
    				"immutable": true,
    				"size": 1
    			},
    			"sign": -2,
    			"time": 1114
    		}, {
    			"annotation": {
    				"empty": true,
    				"importance": 0,
    				"message": ""
    			},
    			"distance": 0.0,
    			"extraInfoJSON": {
    				"last_heading": 0.0
    			},
    			"length": 0,
    			"name": "",
    			"points": {
    				"dimension": 2,
    				"empty": false,
    				"immutable": false,
    				"size": 1
    			},
    			"sign": 4,
    			"time": 0
    		}],
    		"legs": [],
    		"numChanges": 0,
    		"pathDetails": {},
    		"points": {
    			"dimension": 2,
    			"empty": false,
    			"immutable": true,
    			"size": 4
    		},
    		"pointsOrder": [],
    		"routeWeight": 2.842754934471957,
    		"time": 2232,
    		"waypoints": {
    			"dimension": 3,
    			"empty": false,
    			"immutable": false,
    			"size": 2
    		}
    	}],
    	"best": {
    		"$ref": "$.all[0]"
    	},
    	"debugInfo": "idLookup:0.015722s; tmode:NODE_BASED; , algoInit:0.007088s, dijkstrabi|ch-routing:0.0051646s, extract time:4.199E-4;visited nodes sum: 10;, algoInit:0.007088s, dijkstrabi|ch-routing:0.0051646s, extract time:4.199E-4;visited nodes sum: 10, simplify (5->5)",
    	"errors": [],
    	"hints": {
    		"empty": false
    	}
    }