Crear espacios de búfer en metros alrededor de la línea LineString en KML usando Python

¿Alguna sugerencia para crear espacios de búfer en KML LineString usando Python? Probé con pocas bibliotecas …

geojson
shapely
kml2geojson

Aquí, KML convertido a GeoJSON y espacio de búfer agregado en la cadena lineal y la salida debe ser un polígono

import kml2geojson
import json

from shapely.geometry import shape
from geojson import Point, Feature, FeatureCollection, dump

filename = "filekml"
direction = "left"

// numbers in meter
numbers = 5
kml2geojson.main.convert(filename + '.kml', '')
features = []
try:

    with open(filename + '.geojson') as geojson_file:
        data = json.load(geojson_file)
        for feat in data['features']:
            if direction == "left":
                result = shape(feat['geometry']).buffer(numbers, single_sided=True)
            if direction == "right":
                result = shape(feat['geometry']).buffer(-numbers, single_sided=True)
            if direction == "both":
                result = shape(feat['geometry']).buffer(numbers)
            features.append(Feature(geometry=result))
        feature_collection = FeatureCollection(features)
        with open(filename + '.geojson', 'w') as f:
            dump(feature_collection, f)
        f.close()
except Exception as e:
    print(e)

A continuación se muestra el KML

<?xml version="1.0" encoding="utf-8" ?>
<kml>
<Document id="root_doc">
<Folder><name>Test</name>
  <Placemark>
    <Style><LineStyle><color>ff0000ff</color></LineStyle><PolyStyle><fill>0</fill></PolyStyle></Style>
      <MultiGeometry><LineString><coordinates>-93.3367092468336,30.4822077397353 -93.3367001199999,30.482718171</coordinates></LineString></MultiGeometry>
  </Placemark>
</Folder>
</Document></kml>

A continuación se muestra la salida (GeoJSON)

{
  "type": "FeatureCollection",
  "features": [
    {
      "type": "Feature",
      "geometry": {
        "type": "Polygon",
        "coordinates": [
          [
            [
              -93.3367,
              30.482718
            ],
            [
              -93.336709,
              30.482208
            ],
            [
              -93.336722,
              30.482208
            ],
            [
              -93.336713,
              30.482718
            ],
            [
              -93.3367,
              30.482718
            ]
          ]
        ]
      },
      "properties": {}
    }
  ]
}

¿Alguna sugerencia para crear espacios intermedios de línea o puntos?