import type { TextHeadingSchema, TextSubheadingSchema, TextBodySchema, ImageSchema, TextCaptionSchema, DynamicRef } from '../types';
import { Component } from './base';
export declare class TextHeading extends Component {
    private readonly text;
    protected readonly type: "TextHeading";
    constructor(text: string | DynamicRef);
    toJSON(): TextHeadingSchema;
}
export declare class TextSubheading extends Component {
    private readonly text;
    protected readonly type: "TextSubheading";
    constructor(text: string | DynamicRef);
    toJSON(): TextSubheadingSchema;
}
export declare class TextBody extends Component {
    private readonly text;
    protected readonly type: "TextBody";
    private _fontWeight?;
    private _strikethrough?;
    constructor(text: string | DynamicRef);
    setBold(bold?: boolean): this;
    setFontWeight(weight: 'normal' | 'bold'): this;
    setStrikethrough(strikethrough?: boolean): this;
    toJSON(): TextBodySchema;
}
export declare class Image extends Component {
    private readonly src;
    protected readonly type: "Image";
    private _width?;
    private _height?;
    private _scaleType?;
    private _aspectRatio?;
    private _altText?;
    constructor(src: string | DynamicRef);
    setWidth(width: number): this;
    setHeight(height: number): this;
    setScaleType(scaleType: 'cover' | 'contain'): this;
    setAspectRatio(ratio: number): this;
    setAltText(text: string): this;
    toJSON(): ImageSchema;
}
export declare class TextCaption extends Component {
    private readonly text;
    protected readonly type: "TextCaption";
    constructor(text: string | DynamicRef);
    toJSON(): TextCaptionSchema;
}