Function css

css(
    first: CSSObject | TemplateStringsArray,
    ...interpolations: SimpleInterpolation[],
): FlattenSimpleInterpolation

css(
    first:
        | CSSObject
        | TemplateStringsArray
        | InterpolationFunction<ThemeProps<any>>,
    ...interpolations: Interpolation<ThemeProps<any>>[],
): FlattenInterpolation<ThemeProps<any>>

css<P extends object>(
    first:
        | CSSObject
        | TemplateStringsArray
        | InterpolationFunction<ThemedStyledProps<P, any>>,
    ...interpolations: Interpolation<ThemedStyledProps<P, any>>[],
): FlattenInterpolation<ThemedStyledProps<P, any>>