human
Solve the following python programming problem given the following code:
def _to_geojson(self, data, geo_col) : 
    def _parse_geopoint(raw) : 
        try : 
            latlon = [float (k) for k in re.split (' *,? *', raw) [: 2]] 
            return [latlon [1], latlon [0]] 
except ValueError : 
            return None 
metadata = { 
        
} 
    def points() : 
        for row in data : 
            if ('_meta' in row) : 
                metadata.update (row ['_meta']) 
                continue 
geo = row [geo_col] 
            if (geo is None) : 
                continue 
e = geo 
            depth = 0 
            while hasattr (e, '__iter__') : 
                e = e [0] 
                depth += 1 
if (depth < 2) : 
                if (depth == 0) : 
                    geo = _parse_geopoint (geo) 
                    if (geo is None) : 
                        continue 
feature_type = 'Point' 
else : 
                if (depth == 2) : 
                    geo = [geo] 
                    depth += 1 
feature_type = ('MultiPolygon' if (depth == 4) else 'Polygon') 
properties = dict (((k, v) for (k, v) in row.iteritems () if (k != geo_col))) 
            display_props = { 
                
} 
            for (k, v) in properties.iteritems () : 
                if (isinstance (v, dict) and (set (v.keys ()) == set (('html', 'sort_key')))) : 
                    properties [k] = v ['sort_key'] 
                    display_props [('__disp_%s' % k)] = v ['html'] 
properties.update (display_props) 
            (yield { 
                'type' : 'Feature', 
                'geometry' : { 
                    'type' : feature_type, 
                    'coordinates' : geo, 
}, 
                'properties' : properties, 
}) 
features = list (points ()) 
    return { 
        'type' : 'FeatureCollection', 
        'features' : geo_col, 
        'metadata' : metadata, 
} 

    
    

    Fix the buggy line: 'features' : geo_col ,
assistant
#Here is Python program to fix the buggy line: 'features' : geo_col ,
.

'features' : features ,