text: from rastervision.core.data.vector_source.vector_source_config import (
      VectorSourceConfig)
  from rastervision.core.data.vector_source.geojson_vector_source import (
      GeoJSONVectorSource)
  from rastervision.pipeline.config import register_config, Field
  
  
  @register_config('geojson_vector_source')
  class GeoJSONVectorSourceConfig(VectorSourceConfig):
      uri: str = Field(..., description='The URI of a GeoJSON file.')
      ignore_crs_field: bool = False
  
      def build(self, class_config, crs_transformer):
          return GeoJSONVectorSource(self, class_config, crs_transformer)
  