Add TzInfo.__new__ stub method

python/pydantic_core/_pydantic_core.pyi

@@ -975,7 +975,9 @@ def list_all_errors() -> list[ErrorTypeInfo]:
     """
 @final
 class TzInfo(datetime.tzinfo):
-    """An `pydantic-core` implementation of the abstract [`datetime.tzinfo`] class."""
+    """An `pydantic-core` implementation of the abstract [`datetime.tzinfo`][] class."""
+
+    # def __new__(cls, seconds: float) -> Self: ...
 
     # Docstrings for attributes sourced from the abstract base class, [`datetime.tzinfo`](https://docs.python.org/3/library/datetime.html#datetime.tzinfo).
 

src/input/datetime.rs

@@ -548,6 +548,7 @@ pub struct TzInfo {
 #[pymethods]
 impl TzInfo {
     #[new]
+    #[pyo3(signature = (seconds))]
     fn py_new(seconds: f32) -> PyResult<Self> {
         Self::try_from(seconds.trunc() as i32)
     }