add initial type for core

[asukaminato0721]

No description provided.

[asukaminato0721]

I meet one question:

how many types does parse_color have? According to the docstring, I think there are too many of it.

since *args and **kwargs can both take parameters.

from typing import overload
@overload
def parse_color(gray: float) -> Tuple[float, float, float, float]:
    ...


@overload
def parse_color(gray: float, alpha: float) -> Tuple[float, float, float, float]:
    ...


@overload
def parse_color(
    r: float,
    g: float,
    b: float,
    color_mode: str = "RGB",
    normed: bool = False,
    **kwargs,
) -> Tuple[float, float, float, float]:
    ...


@overload
def parse_color(
    red: float,
    green: float,
    blue: float,
    color_mode: str = "RGB",
    normed: bool = False,
    **kwargs,
) -> Tuple[float, float, float, float]:
    ...


@overload
def parse_color(
    h: float,
    s: float,
    b: float,
    color_mode: str = "HSB",
    normed: bool = False,
    **kwargs,
) -> Tuple[float, float, float, float]:
    ...


@overload
def parse_color(
    r: float,
    g: float,
    b: float,
    a: float,
    color_mode: str = "RGB",
    normed: bool = False,
    **kwargs,
) -> Tuple[float, float, float, float]:
    ...


@overload
def parse_color(
    h: float,
    s: float,
    b: float,
    a: float,
    color_mode: str = "HSB",
    normed: bool = False,
    **kwargs,
) -> Tuple[float, float, float, float]:
    ...


@overload
def parse_color(hex: str) -> Tuple[float, float, float, float]:
    ...


@overload
def parse_color(color_name: str) -> Tuple[float, float, float, float]:
    ...

# and then put the color at kwargs.

[tushar5526]

I think we can skip adding very specific types to parse_color. Our main focus is to annotate user facing APIs properly, followed by internal APIs