I am trying to load a geojson file using the following code:

capa = QgsVectorLayer("C:/...file.geojson","capa","ogr")
if not layer.isValid():
  print("Layer failed to load!")

QgsProject.instance().addMapLayer(capa)

The geojson file contents a FeatureCollection, some points feature and a multiline. But just the poinst are rendered. Cannot load the multiline.

How can I do that stuff?