tweak type

src/pymatgen/io/vasp/inputs.py

@@ -861,7 +861,7 @@ def from_str(cls, string: str) -> Self:
             for sline in line.split(";"):
                 if match := re.match(r"(\w+)\s*=\s*(.*)", sline.strip()):
                     key: str = match[1].strip()
-                    val: Any = match[2].strip()
+                    val: str = match[2].strip()
                     params[key] = cls.proc_val(key, val)
         return cls(params)
 

src/pymatgen/util/io_utils.py

@@ -9,7 +9,7 @@
 from monty.io import zopen
 
 if TYPE_CHECKING:
-    from collections.abc import Generator
+    from collections.abc import Iterator
 
 __author__ = "Shyue Ping Ong, Rickard Armiento, Anubhav Jain, G Matteo, Ioannis Petousis"
 __copyright__ = "Copyright 2011, The Materials Project"
@@ -21,21 +21,21 @@
 
 
 def clean_lines(
-    string_list,
-    remove_empty_lines=True,
-    rstrip_only=False,
-) -> Generator[str, None, None]:
+    string_list: list[str],
+    remove_empty_lines: bool = True,
+    rstrip_only: bool = False,
+) -> Iterator[str]:
     """Strips whitespace, carriage returns and empty lines from a list of strings.
 
     Args:
-        string_list: List of strings
-        remove_empty_lines: Set to True to skip lines which are empty after
+        string_list(list[str]): List of strings.
+        remove_empty_lines(bool): Set to True to skip lines which are empty after
             stripping.
-        rstrip_only: Set to True to strip trailing whitespaces only (i.e.,
+        rstrip_only(bool): Set to True to strip trailing whitespaces only (i.e.,
             to retain leading whitespaces). Defaults to False.
 
     Yields:
-        list: clean strings with no whitespaces. If rstrip_only == True,
+        str: clean strings with no whitespaces. If rstrip_only == True,
             clean strings with no trailing whitespaces.
     """
     for s in string_list: