import type { ChildrenList, ShadeComponent } from './models/index.js';
/**
 * When true, the JSX factory produces VNode descriptors instead of real DOM elements.
 * Set to true by `_performUpdate` before calling `render()`, then back to false after.
 */
export declare const setRenderMode: (mode: boolean) => void;
/**
 * Appends `children` to `el`. Strings/numbers are wrapped in text nodes;
 * nested arrays are flattened recursively. Used outside render mode (real
 * DOM); inside render mode the JSX factory builds VNodes instead.
 */
export declare const appendChild: (el: Element | DocumentFragment, children: ChildrenList) => void;
export declare const hasStyle: (props: unknown) => props is {
    style: Partial<CSSStyleDeclaration>;
};
/** Copies `props.style` (when present) onto `el.style`. No-op for non-styled props. */
export declare const attachStyles: (el: HTMLElement, props: unknown) => void;
export declare const attachDataAttributes: <TProps extends object>(el: HTMLElement, props: TProps) => void;
/**
 * Assigns `props` onto `el` as element properties (not attributes). `style`
 * is forwarded to {@link attachStyles}; `data-*` / `aria-*` are forwarded to
 * {@link attachDataAttributes}.
 */
export declare const attachProps: <TProps extends object>(el: HTMLElement, props: TProps) => void;
/**
 * SVG counterpart of {@link attachProps}. SVG attributes are XML-based and
 * must be set via `setAttribute` rather than property assignment. Event
 * handlers (`on*`) and `style` are still set as properties.
 */
export declare const attachSvgProps: <TProps extends object>(el: Element, props: TProps) => void;
type CreateComponentArgs<TProps> = [
    elementType: string | ShadeComponent<TProps>,
    props: TProps,
    ...children: ChildrenList
];
/**
 * JSX factory backing both intrinsic elements (`<div>`, `<svg>`, …) and
 * Shade components (`<MyShade>`). Configured as `jsxFactory` in tsconfig.
 * Outside render mode this returns real DOM nodes; the render-mode wrapper
 * {@link createComponent} swaps in VNode descriptors.
 */
export declare const createComponentInner: <TProps extends object>(...[elementType, props, ...children]: CreateComponentArgs<TProps>) => HTMLElement | SVGElement | undefined;
type CreateFragmentArgs = [props: null, ...children: ChildrenList];
export declare const createFragmentInner: (...[_props, ...children]: CreateFragmentArgs) => DocumentFragment;
export declare const createComponent: <TProps extends object>(...args: CreateComponentArgs<TProps> | CreateFragmentArgs) => DocumentFragment | HTMLElement | SVGElement | undefined;
export {};
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