perf: move type import to TYPE_CHECKING to reduce import time

Author: nolliv22

codesectools/sasts/tools/Cppcheck/parser.py

@@ -5,14 +5,19 @@
 format used by CodeSecTools.
 """
 
+from __future__ import annotations
+
 import json
 from pathlib import Path
-from typing import Self
+from typing import TYPE_CHECKING, Self
 
 from codesectools.sasts.core.parser import AnalysisResult, Defect
 from codesectools.shared.cwe import CWE, CWEs
 from codesectools.utils import MissingFile
 
+if TYPE_CHECKING:
+    from lxml.etree import ElementTree
+
 
 class CppcheckError(Defect):
     """Represent a single error reported by Cppcheck."""
@@ -47,8 +52,6 @@ def __init__(
 class CppcheckAnalysisResult(AnalysisResult):
     """Represent the complete result of a Cppcheck analysis."""
 
-    from lxml.etree import ElementTree
-
     def __init__(self, output_dir: Path, xml_tree: ElementTree, cmdout: dict) -> None:
         """Initialize a CppcheckAnalysisResult instance.