1 files changed, 18 insertions, 3 deletions
diff --git a/coverage/disposition.py b/coverage/disposition.py
index 34819f42..5237c364 100644
--- a/coverage/disposition.py
+++ b/coverage/disposition.py
@@ -3,11 +3,26 @@
 
 """Simple value objects for tracking what to do with files."""
 
+from __future__ import annotations
+
+from typing import Optional, Type, TYPE_CHECKING
+
+if TYPE_CHECKING:
+    from coverage.plugin import FileTracer
+
 
 class FileDisposition:
     """A simple value type for recording what to do with a file."""
 
-    def __repr__(self):
+    original_filename: str
+    canonical_filename: str
+    source_filename: Optional[str]
+    trace: bool
+    reason: str
+    file_tracer: Optional[FileTracer]
+    has_dynamic_filename: bool
+
+    def __repr__(self) -> str:
         return f"<FileDisposition {self.canonical_filename!r}: trace={self.trace}>"
 
 
@@ -15,7 +30,7 @@ class FileDisposition:
 # be implemented in either C or Python.  Acting on them is done with these
 # functions.
 
-def disposition_init(cls, original_filename):
+def disposition_init(cls: Type[FileDisposition], original_filename: str) -> FileDisposition:
     """Construct and initialize a new FileDisposition object."""
     disp = cls()
     disp.original_filename = original_filename
@@ -28,7 +43,7 @@ def disposition_init(cls, original_filename):
     return disp
 
 
-def disposition_debug_msg(disp):
+def disposition_debug_msg(disp: FileDisposition) -> str:
     """Make a nice debug message of what the FileDisposition is doing."""
     if disp.trace:
         msg = f"Tracing {disp.original_filename!r}"