Update migration.pyi (#501)

* Update migration.pyi

* Fixes tests

* Fixes tests

* Fixes tests

.travis.yml

@@ -38,7 +38,7 @@ jobs:
 
     - name: Lint with black
       python: 3.7
-      script: 'black --check django-stubs/'
+      script: 'black --check django-stubs/ setup.py'
 
     - name: Lint plugin code with flake8
       python: 3.7

dev-requirements.txt

@@ -1,5 +1,5 @@
 black
-pytest-mypy-plugins==1.3.0
+pytest-mypy-plugins==1.6.1
 psycopg2-binary
 flake8==3.7.9
 flake8-pyi==19.3.0

django-stubs/db/migrations/migration.pyi

@@ -1,14 +1,15 @@
-from typing import Any, List, Tuple
+from typing import Tuple, List, Optional
 
 from django.db.backends.base.schema import BaseDatabaseSchemaEditor
 from django.db.migrations.state import ProjectState
+from django.db.migrations.operations.base import Operation
 
 class Migration:
-    operations: List[Any] = ...
-    dependencies: List[Any] = ...
-    run_before: List[Any] = ...
-    replaces: List[Any] = ...
-    initial: Any = ...
+    operations: List[Operation] = ...
+    dependencies: List[Tuple[str, str]] = ...
+    run_before: List[Tuple[str, str]] = ...
+    replaces: List[Tuple[str, str]] = ...
+    initial: Optional[bool] = ...
     atomic: bool = ...
     name: str = ...
     app_label: str = ...

django-stubs/test/runner.pyi

@@ -70,7 +70,7 @@ class ParallelTestSuite(TestSuite):
     processes: Any = ...
     failfast: Any = ...
     def __init__(self, suite: Any, processes: Any, failfast: bool = ...) -> None: ...
-    def run(self, result: Any): ...
+    def run(self, result: Any): ...  # type: ignore
 
 class DiscoverRunner:
     test_suite: Any = ...

setup.py

@@ -21,7 +21,7 @@ with open("README.md", "r") as f:
     readme = f.read()
 
 dependencies = [
-    "mypy>=0.782,<0.790",
+    "mypy>=0.790",
     "typing-extensions",
     "django",
 ]