import { BlockContext } from './BlockContext';
import type { BlockRenderers } from './BlockRenderers';
import type { Conditions } from './Conditions';
import type { Block } from '../blocks/Block';
import type { BlockElement } from '../blocks/BlockElement';
import type { RenderableLayoutBlock } from '../blocks/RenderableLayoutBlock';
import type { TextObject } from '../blocks/TextObject';
import type { Markdown } from '../blocks/text/Markdown';
import type { PlainText } from '../blocks/text/PlainText';
export declare abstract class SurfaceRenderer<TOutputObject, TAllowedLayoutBlock extends RenderableLayoutBlock = RenderableLayoutBlock> implements BlockRenderers<TOutputObject> {
    protected readonly allowedLayoutBlockTypes: Set<TAllowedLayoutBlock['type']>;
    constructor(allowedLayoutBlockTypes: TAllowedLayoutBlock['type'][]);
    private isAllowedLayoutBlock;
    render(blocks: readonly Block[], conditions?: Conditions): TOutputObject[];
    renderTextObject(textObject: TextObject, index: number, context?: BlockContext): TOutputObject | null;
    renderActionsBlockElement(block: BlockElement, index: number): TOutputObject | null;
    renderContextBlockElement(block: TextObject | BlockElement, index: number): TOutputObject | null;
    renderInputBlockElement(block: BlockElement, index: number): TOutputObject | null;
    renderSectionAccessoryBlockElement(block: BlockElement, index: number): TOutputObject | null;
    abstract plain_text(textObject: PlainText, context: BlockContext, index: number): TOutputObject | null;
    abstract mrkdwn(textObject: Markdown, context: BlockContext, index: number): TOutputObject | null;
}
//# sourceMappingURL=SurfaceRenderer.d.ts.map