def METHOD_NAME(self) -> None:
    from metadata.ingestion.source.database.bigquery.lineage import (
        BigqueryLineageSource,
    )
    from metadata.ingestion.source.database.bigquery.usage import (
        BigqueryUsageSource,
    )
    from metadata.ingestion.source.database.mysql.metadata import MysqlSource
    self.assertEqual(
        import_source_class(service_type=ServiceType.Database, source_type="mysql"),
        MysqlSource,
    )
    self.assertEqual(
        import_source_class(
            service_type=ServiceType.Database, source_type="bigquery-lineage"
        ),
        BigqueryLineageSource,
    )
    self.assertEqual(
        import_source_class(
            service_type=ServiceType.Database, source_type="bigquery-usage"
        ),
        BigqueryUsageSource,
    )