Updates mypy and pytype annotations, etc

Author: chalmerlowe

google/cloud/bigquery/external_config.py

@@ -1027,7 +1027,7 @@ def __init__(
         default_storage_location_uri: Optional[str] = None,
         parameters: Optional[Dict[str, Any]] = None,
     ):
-        self._properties = {}
+        self._properties: Dict[str, Any] = {}
         self.default_storage_location_uri = default_storage_location_uri
         self.parameters = parameters
 

google/cloud/bigquery/schema.py

@@ -610,7 +610,7 @@ class TableSchema:
     def __init__(
         self, fields: Optional[list] = None, foreign_type_info: Optional[str] = None
     ):
-        self._properties = {}
+        self._properties: Dict[str, Any] = {} 
         self.fields = fields
         self.foreign_type_info = foreign_type_info
 
@@ -621,7 +621,7 @@ def fields(self) -> Any:
         return self._properties.get("fields")
 
     @fields.setter
-    def fields(self, value: list, dtype: str) -> str:
+    def fields(self, value: list, dtype: str) -> None:
         value = _isinstance_or_raise(value, list, none_allowed=True)
         self._properties["fields"] = value
 
@@ -633,7 +633,7 @@ def foreign_type_info(self) -> Any:
         return self._properties.get("foreignTypeInfo")
 
     @foreign_type_info.setter
-    def foreign_type_info(self, value: str, dtype: str) -> str:
+    def foreign_type_info(self, value: str, dtype: str) -> None:
         if not isinstance(value, str):
             raise ValueError(
                 f"Pass {value} as a '{repr(dtype)}'." f"Got {type(value)}."
@@ -718,7 +718,7 @@ def __init__(
         output_format: Optional[str] = None,
         serde_info: Optional[SerDeInfo] = None,
     ):
-        self._properties = {}
+        self._properties: Dict[str, Any] = {}
         self.input_format = input_format
         self.location_uri = location_uri
         self.output_format = output_format
@@ -829,7 +829,7 @@ def __init__(
         name: Optional[str] = None,
         parameters: Optional[dict[str, str]] = None,
     ):
-        self._properties = {}
+        self._properties: Dict[str, Any] = {}
         self.serialization_library = serialization_library
         self.name = name
         self.parameters = parameters