/**
 * Extra props a host application supplies for one component instance, handed
 * to the component as `LibraryComponentBuildContext.widgetInstanceProps`.
 *
 * Opaque to widget-react-native: it forwards the bag and never inspects it.
 * `r-button` reads `onClick`.
 */
export type WidgetInstanceProps = Record<string, unknown>;
/**
 * Host-supplied per-instance props, keyed by the column id of the component
 * instance they are meant for. A key may be a single column id or a
 * `/`-separated path of column ids ending at the target.
 */
export type ComponentPropsMap = Record<string, WidgetInstanceProps>;
/**
 * Host-app components `r-mount` can render, keyed by the name an author
 * types in the composer. The name is a map lookup, not a string that
 * becomes code. A miss is a placeholder.
 */
export type MountsMap = {
    [name: string]: import('react').ComponentType<any>;
};
/** Separator between column ids in a `ComponentPropsMap` path key. */
export declare const COMPONENT_PROPS_PATH_SEPARATOR = "/";
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