diff --git a/odoo-stubs/tools/sourcemap_generator.pyi b/odoo-stubs/tools/sourcemap_generator.pyi
index db6dc2d..f0ebcef 100644
--- a/odoo-stubs/tools/sourcemap_generator.pyi
+++ b/odoo-stubs/tools/sourcemap_generator.pyi
@@ -1,22 +1,22 @@
 from typing import Any
 
 class SourceMapGenerator:
-    _file: Any
-    _source_root: Any
-    _sources: Any
-    _mappings: Any
-    _sources_contents: Any
+    _file: None
+    _source_root: str | None
+    _sources: dict[str, int]
+    _mappings: list[dict[str, Any]]
+    _sources_contents: dict[str, str]
     _version: int
-    _cache: Any
-    def __init__(self, source_root: Any | None = ...) -> None: ...
-    def _serialize_mappings(self): ...
-    def to_json(self): ...
-    def get_content(self): ...
-    def add_source(self, source_name, source_content, last_index, start_offset: int = ...) -> None: ...
+    _cache: dict[tuple[int, int], str]
+    def __init__(self, source_root: str | None = ...) -> None: ...
+    def _serialize_mappings(self) -> str: ...
+    def to_json(self) -> dict: ...
+    def get_content(self) -> bytes: ...
+    def add_source(self, source_name: str, source_content: str, last_index: int, start_offset: int = ...) -> None: ...
 
 B64CHARS: bytes
-SHIFTSIZE: Any
-FLAG: Any
-MASK: Any
+SHIFTSIZE: int
+FLAG: int
+MASK: int
 
-def base64vlq_encode(*values): ...
+def base64vlq_encode(*values) -> str: ...