import type { Stream, Streamable } from '@rimbu/stream';
import type { GraphBase, GraphElement } from '@rimbu/graph/custom';
/**
 * A type-invariant immutable graph.
 * See the [Graph documentation](https://rimbu.org/docs/collections/graph) and the [Graph API documentation](https://rimbu.org/api/rimbu/graph/Graph/interface)
 * @typeparam N - the node type
 */
export interface Graph<N> extends GraphBase<N, Graph.Types> {
}
export declare namespace Graph {
    /**
     * A non-empty type-invariant immutable graph.
     * See the [Graph documentation](https://rimbu.org/docs/collections/graph) and the [Graph API documentation](https://rimbu.org/api/rimbu/graph/Graph/interface)
     * @typeparam N - the node type
     */
    interface NonEmpty<N> extends GraphBase.NonEmpty<N, Graph.Types>, Omit<Graph<N>, keyof GraphBase.NonEmpty<any, any>>, Streamable.NonEmpty<GraphElement<N>> {
        /**
         * Returns a non-empty `Stream` containing all graph elements of this collection as single tuples for isolated nodes
         * and 2-valued tuples of nodes for connections.
         * @example
         * ```ts
         * ArrowGraphHashed.of([1], [2, 3]).stream().toArray()  // => [[1], [2, 3]]
         * ```
         */
        stream(): Stream.NonEmpty<GraphElement<N>>;
    }
    /**
     * A mutable `Graph` builder used to efficiently create new immutable instances.
     * See the [Graph documentation](https://rimbu.org/docs/collections/graph) and the [Graph.Builder API documentation](https://rimbu.org/api/rimbu/graph/Graph/Builder/interface)
     * @typeparam N - the node type
     */
    interface Builder<N> extends GraphBase.Builder<N, Graph.Types> {
    }
    /**
     * The Graph's Context instance that serves as a factory for all related immutable instances and builders.
     * @typeparam UN - the upper type limit for node types for which this context can create instances
     */
    interface Context<UN> extends GraphBase.Context<UN, Graph.Types> {
    }
    /**
     * Utility interface that provides higher-kinded types for this collection.
     */
    interface Types extends GraphBase.Types {
        readonly normal: Graph<this['_N']>;
        readonly nonEmpty: Graph.NonEmpty<this['_N']>;
        readonly context: Graph.Context<this['_N']>;
    }
}