import type { SchemaTypes } from '@datocms/cma-client';
import { BlockNodeTypeWithCustomStyle } from 'datocms-structured-text-utils';
import { Ctx } from '../ctx/base';
type Field = SchemaTypes.Field;
type ItemType = SchemaTypes.ItemType;
export type CustomBlockStylesForStructuredTextFieldHook = {
    /**
     * Use this function to define a number of custom block styles for a specific
     * Structured Text field
     *
     * @tag structuredText
     */
    customBlockStylesForStructuredTextField: (field: Field, ctx: CustomBlockStylesForStructuredTextFieldCtx) => StructuredTextCustomBlockStyle[] | undefined;
};
export type CustomBlockStylesForStructuredTextFieldCtx = Ctx<{
    itemType: ItemType;
}>;
/**
 * An object expressing a custom block style for a Structured Text field
 *
 * @see {isStructuredTextCustomBlockStyle}
 */
export type StructuredTextCustomBlockStyle = {
    /** ID of custom block style */
    id: string;
    /** The block node that can apply this style */
    node: BlockNodeTypeWithCustomStyle;
    /** ID of custom block style */
    label: string;
    /** How the block will be styled inside the editor to represent the style */
    appliedStyle: React.CSSProperties;
    /**
     * Custom styles for a block node will be sorted by ascending `rank`. If you
     * want to specify an explicit value for `rank`, make sure to offer a way for
     * final users to customize it inside the plugin's settings form, otherwise
     * the hardcoded value you choose might clash with the one of another plugin!
     */
    rank?: number;
};
export declare function isStructuredTextCustomBlockStyle(value: unknown): value is StructuredTextCustomBlockStyle;
export declare function isReturnTypeOfCustomBlockStylesForStructuredTextFieldHook(value: unknown): value is StructuredTextCustomBlockStyle[] | undefined;
export {};