import { Canvas, CanvasGradient, CanvasPattern, CanvasTextAlign } from 'canvas';
export type * from 'canvas';
export type GenerateFunction<T extends GenerateOptions> = (content: string, config?: T) => string | Promise<string>;
export interface GenerateOptions {
    bgColor?: string | CanvasGradient | CanvasPattern;
    customHeight?: number;
    fontFamily?: string;
    fontPath?: string;
    fontSize?: number;
    fontWeight?: string | number;
    lineHeight?: number;
    margin?: number;
    maxWidth?: number;
    textAlign?: CanvasTextAlign;
    textColor?: string;
    verticalAlign?: string;
    extensions?: Array<Extension>;
}
export interface GenerateOptionsAsync extends GenerateOptions {
    extensions?: Array<Extension>;
}
export interface GenerateOptionsSync extends GenerateOptions {
    extensions?: Array<SyncExtension>;
}
export type SyncExtension = (canvas: Canvas, config: ComputedOptions) => Canvas;
export type AsyncExtension = (canvas: Canvas, config: ComputedOptions) => Promise<Canvas>;
export type Extension = SyncExtension | AsyncExtension;
export type ComputedOptions<T extends GenerateOptions = GenerateOptions> = Required<T>;
export interface fileWriterOptions {
    fileName?: string;
}