assertThat(LOWER_HYPHEN.to(LOWER_HYPHEN, "foo")).isEqualTo("foo");
    assertThat(LOWER_HYPHEN.to(LOWER_HYPHEN, "foo-bar")).isEqualTo("foo-bar");
  }

  public void testLowerHyphenToLowerUnderscore() {
    assertThat(LOWER_HYPHEN.to(LOWER_UNDERSCORE, "foo")).isEqualTo("foo");
    assertThat(LOWER_HYPHEN.to(LOWER_UNDERSCORE, "foo-bar")).isEqualTo("foo_bar");
  }

  public void testLowerHyphenToLowerCamel() {

    return [{"alias": "Foo"}, {"alias": "Bar"}]


@app.get("/by-alias/dict", response_model=Model)
def by_alias_dict():
    return {"alias": "Foo"}


@app.get("/by-alias/model", response_model=Model)
def by_alias_model():
    return Model(alias="Foo")


@app.get("/by-alias/list", response_model=list[Model])
def by_alias_list():
    return [{"alias": "Foo"}, {"alias": "Bar"}]

        "Parsing: <http://example\t.\norg> against <http://example.org/foo/bar>",
        "Parsing: <http://f:0/c> against <http://example.org/foo/bar>",
        "Parsing: <http://f:00000000000000/c> against <http://example.org/foo/bar>",
        "Parsing: <http://f:\n/c> against <http://example.org/foo/bar>",
        "Parsing: <http://f:999999/c> against <http://example.org/foo/bar>",
        "Parsing: <http://192.0x00A80001> against <about:blank>",

     *       {@code {"--module-path", "dir\path1;dir\path2"}} on Windows.</li>
     *   <li>If this type was created by {@code JavaPathType.patchModule("foo.bar")}, then the method returns
     *       {@code {"--patch-module", "foo.bar=dir/path1:dir/path2"}} on Unix or
     *       {@code {"--patch-module", "foo.bar=dir\path1;dir\path2"}} on Windows.</li>
     * </ul>
     *
     * @param paths the path to format as a string

                "msg": "Field required",
                "input": {"tags": ["foo", "bar"], "with": "nothing"},
            },
            {
                "type": "missing",
                "loc": ["body", "lastname"],
                "msg": "Field required",
                "input": {"tags": ["foo", "bar"], "with": "nothing"},
            },
        ]
    }


def test_extra_param_single():

class Item(BaseModel):
    name: str
    description: str | None = None
    price: float
    tax: float = 10.5


items = {
    "foo": {"name": "Foo", "price": 50.2},
    "bar": {"name": "Bar", "description": "The Bar fighters", "price": 62, "tax": 20.2},
    "baz": {
        "name": "Baz",
        "description": "There goes my baz",
        "price": 50.2,
        "tax": 10.5,
    },
}


@app.get(

class Item(BaseModel):
    name: str
    description: Union[str, None] = None
    price: float
    tax: float = 10.5


items = {
    "foo": {"name": "Foo", "price": 50.2},
    "bar": {"name": "Bar", "description": "The Bar fighters", "price": 62, "tax": 20.2},
    "baz": {
        "name": "Baz",
        "description": "There goes my baz",
        "price": 50.2,
        "tax": 10.5,
    },
}


@app.get(

@app.get("/items/validlist", response_model=list[Item])
def get_validlist():
    return [
        {"name": "foo", "date": datetime(2021, 7, 26)},
        {"name": "bar", "date": datetime(2021, 7, 26), "price": 1.0},
        {
            "name": "baz",
            "date": datetime(2021, 7, 26),
            "price": 2.0,
            "owner_ids": [1, 2, 3],
        },
    ]

    assertEquals(3, multimap.size());
    assertTrue(multimap.containsKey("bar"));
    assertEquals(singleton(2), multimap.removeAll("bar"));
    assertEquals(2, multimap.size());
    assertFalse(multimap.containsKey("bar"));
  }

  public void testForMapAsMap() {
    Map<String, Integer> map = new HashMap<>();
    map.put("foo", 1);
    map.put("bar", 2);
    Map<String, Collection<Integer>> asMap = Multimaps.forMap(map).asMap();

    builder.putAll("foo", Arrays.asList(1, 2, 3));
    builder.putAll("bar", Arrays.asList(4, 5));
    builder.putAll("foo", Arrays.asList(6, 7));
    Multimap<String, Integer> multimap = builder.build();
    assertEquals(ImmutableSet.of(1, 2, 3, 6, 7), multimap.get("foo"));
    assertEquals(ImmutableSet.of(4, 5), multimap.get("bar"));
    assertEquals(7, multimap.size());
  }