human
Solve the following python programming problem given the following code:
def __init__(self, objConverter = None, mapping = None) : 
    geojson_header = '{
        "type": "FeatureCollection",
        "crs": {
            "type": "name",
            "properties": {
                "name": "urn:ogc:def:crs:OGC:1.3:CRS84"
            }
        },
        "features": [
        ' 
    geojson_footer = '
       ]
        }
        ' 
    if (objConverter is None) : 
        if (mapping is None) : 
            raise Exception ('Must provide objConverter or geoJsonMapping') 
def convertToGeoJson(obj) : 
            lat_expr = jsonpath_rw.parse (mapping ['latitudeKeypath']) 
            long_expr = jsonpath_rw.parse (mapping ['longitudeKeypath']) 
            def extractLat(obj) : 
                match = lat_expr.find (obj) 
                return float (match [0].value) 
def extractLong(obj) : 
                match = long_expr.find (obj) 
                return float (match [0].value) 
point = geojson.Point ((extractLong (obj), extractLat (obj))) 
            properties = { 
                'placeholder' : 0, 
} 
            feature = geojson.Feature (geometry = point, properties = properties) 
            return feature 
objConverter = convertToGeoJson 
super (GeoJsonMapper, self).__init__ (geojson_footer, geojson_header, geojson_footer, geojson.dumps) 

    
    

    Fix the buggy line: super (GeoJsonMapper, self).__init__ (geojson_footer, geojson_header, geojson_footer, geojson.dumps)
assistant
#Here is Python program to find (obj) 
.

super (GeoJsonMapper, self).__init__ (objConverter, geojson_header, geojson_footer, geojson.dumps)