Fixes lint errors

superset/db_engine_specs/trino.py

@@ -26,7 +26,6 @@ from sqlalchemy.engine.url import make_url, URL
 from sqlalchemy.orm import Session
 
 from superset.db_engine_specs.base import BaseEngineSpec
-from superset.db_engine_specs.presto import PrestoEngineSpec
 from superset.models.sql_lab import Query
 from superset.utils import core as utils
 

superset/utils/core.py

@@ -174,6 +174,15 @@ class GenericDataType(IntEnum):
     # ROW = 7
 
 
+class DatasourceType(str, Enum):
+    SLTABLE = "sl_table"
+    TABLE = "table"
+    DATASET = "dataset"
+    QUERY = "query"
+    SAVEDQUERY = "saved_query"
+    VIEW = "view"
+
+
 class DatasourceDict(TypedDict):
     type: str
     id: int