def camelcase_parameters_dependency(request: Request) -> None:
query_params = request.query_params
new_params = MultiDict()
for k, v in query_params.multi_items():
if "_" in k:
camel = snake2camel(k, start_lower=True)
new_params.append(camel, v)
else:
new_params.append(k, v)
request._query_params = new_params
def test_multidict():
q = MultiDict([("a", "123"), ("a", "456"), ("b", "789")])
assert "a" in q
assert "A" not in q
assert "c" not in q
assert q["a"] == "456"
assert q.get("a") == "456"
assert q.get("nope", default=None) is None
assert q.getlist("a") == ["123", "456"]
assert list(q.keys()) == ["a", "b"]
assert list(q.values()) == ["456", "789"]
assert list(q.items()) == [("a", "456"), ("b", "789")]
assert len(q) == 2
assert list(q) == ["a", "b"]
assert dict(q) == {"a": "456", "b": "789"}
assert str(q) == "MultiDict([('a', '123'), ('a', '456'), ('b', '789')])"
assert repr(q) == "MultiDict([('a', '123'), ('a', '456'), ('b', '789')])"
assert MultiDict({
"a": "123",
"b": "456"
}) == MultiDict([("a", "123"), ("b", "456")])
assert MultiDict({
"a": "123",
"b": "456"
}) == MultiDict([("a", "123"), ("b", "456")])
assert MultiDict({
"a": "123",
"b": "456"
}) == MultiDict({
"b": "456",
"a": "123"
})
assert MultiDict() == MultiDict({})
assert MultiDict({"a": "123", "b": "456"}) != "invalid"
q = MultiDict([("a", "123"), ("a", "456")])
assert MultiDict(q) == q
q = MultiDict([("a", "123"), ("a", "456")])
q["a"] = "789"
assert q["a"] == "789"
assert q.getlist("a") == ["789"]
q = MultiDict([("a", "123"), ("a", "456")])
del q["a"]
assert q.get("a") is None
assert repr(q) == "MultiDict([])"
q = MultiDict([("a", "123"), ("a", "456"), ("b", "789")])
assert q.pop("a") == "456"
assert q.get("a", None) is None
assert repr(q) == "MultiDict([('b', '789')])"
q = MultiDict([("a", "123"), ("a", "456"), ("b", "789")])
item = q.popitem()
assert q.get(item[0]) is None
q = MultiDict([("a", "123"), ("a", "456"), ("b", "789")])
assert q.poplist("a") == ["123", "456"]
assert q.get("a") is None
assert repr(q) == "MultiDict([('b', '789')])"
q = MultiDict([("a", "123"), ("a", "456"), ("b", "789")])
q.clear()
assert q.get("a") is None
assert repr(q) == "MultiDict([])"
q = MultiDict([("a", "123")])
q.setlist("a", ["456", "789"])
assert q.getlist("a") == ["456", "789"]
q.setlist("b", [])
assert "b" not in q
q = MultiDict([("a", "123")])
assert q.setdefault("a", "456") == "123"
assert q.getlist("a") == ["123"]
assert q.setdefault("b", "456") == "456"
assert q.getlist("b") == ["456"]
assert repr(q) == "MultiDict([('a', '123'), ('b', '456')])"
q = MultiDict([("a", "123")])
q.append("a", "456")
assert q.getlist("a") == ["123", "456"]
assert repr(q) == "MultiDict([('a', '123'), ('a', '456')])"
q = MultiDict([("a", "123"), ("b", "456")])
q.update({"a": "789"})
assert q.getlist("a") == ["789"]
q == MultiDict([("a", "789"), ("b", "456")])
q = MultiDict([("a", "123"), ("b", "456")])
q.update(q)
assert repr(q) == "MultiDict([('a', '123'), ('b', '456')])"
q = MultiDict([("a", "123"), ("b", "456")])
q.update(None)
assert repr(q) == "MultiDict([('a', '123'), ('b', '456')])"
q = MultiDict([("a", "123"), ("a", "456")])
q.update([("a", "123")])
assert q.getlist("a") == ["123"]
q.update([("a", "456")], a="789", b="123")
assert q == MultiDict([("a", "456"), ("a", "789"), ("b", "123")])