feat(verify.py): implemented function verify and its test

src/is_element_in_list.py

@@ -0,0 +1,5 @@
+def is_element_in_list(values:list[int], value:int ) -> bool:
+    for x in values:
+        if x == value:
+            return True
+    return False

tests/test_is_element_in_list.py

@@ -0,0 +1,7 @@
+from src.is_element_in_list import is_element_in_list
+import pytest
+
+@pytest.mark.parametrize("input_1", [[1, 2, 3]])
+@pytest.mark.parametrize("input_2, expected", [(2, True), (4, False)])
+def test_is_element_in_list(input_1:list, input_2:int, expected:bool) -> None:
+    assert is_element_in_list(input_1, input_2) == expected