Get Layer Fields and File Path

roads_fn = 'C:/pyqgis/vector/tl_2019_16_prisecroads.shp'
roads_lyr = QgsVectorLayer(roads_fn, 'roads', 'ogr')
roads_lyr.name()
roads_lyr.dataProvider().dataSourceUri()
roads_lyr.fields()
for field in roads_lyr.fields():
    print(field)
for field in roads_lyr.fields():
    print(field)
    print(field.name())
    print(field.type())