benefit of initialising an object using proxy method?

I was going through fastapi source code and there I saw param_functions file.

def Path(  # noqa: N802
    default: Any = Undefined,
    *,
    alias: Optional[str] = None,
    title: Optional[str] = None,
    description: Optional[str] = None,
    gt: Optional[float] = None,
    ge: Optional[float] = None,
    lt: Optional[float] = None,
    le: Optional[float] = None,
    min_length: Optional[int] = None,
    max_length: Optional[int] = None,
    regex: Optional[str] = None,
    example: Any = Undefined,
    examples: Optional[Dict[str, Any]] = None,
    deprecated: Optional[bool] = None,
    include_in_schema: bool = True,
    **extra: Any,
) -> Any:
    return params.Path(
        default=default,
        alias=alias,
        title=title,
        description=description,
        gt=gt,
        ge=ge,
        lt=lt,
        le=le,
        min_length=min_length,
        max_length=max_length,
        regex=regex,
        example=example,
        examples=examples,
        deprecated=deprecated,
        include_in_schema=include_in_schema,
        **extra,
    )

Ultimately they are forwarding their calls to Path class initialiser. My question is why are they doing it like this? and why not simply use the class instead of calling a method which calls the class initialiser, why not directly initialise the class.