import type { Stream, Streamable } from '@rimbu/stream';
import type { ValuedGraphElement, VariantValuedGraphBase } from '@rimbu/graph/custom';
/**
 * A type-variant immutable valued graph.
 * See the [Graph documentation](https://rimbu.org/docs/collections/graph) and the [VariantValuedGraph API documentation](https://rimbu.org/api/rimbu/graph/VariantValuedGraph/interface)
 * @typeparam N - the node type
 * @typeparam V - the connection value type
 */
export interface VariantValuedGraph<N, V> extends VariantValuedGraphBase<N, V, VariantValuedGraph.Types> {
}
export declare namespace VariantValuedGraph {
    /**
     * A non-empty type-variant immutable valued graph.
     * See the [Graph documentation](https://rimbu.org/docs/collections/graph) and the [VariantValuedGraph API documentation](https://rimbu.org/api/rimbu/graph/VariantValuedGraph/interface)
     * @typeparam N - the node type
     * @typeparam V - the connection value type
     */
    interface NonEmpty<N, V> extends VariantValuedGraphBase.NonEmpty<N, V, VariantValuedGraph.Types>, Omit<VariantValuedGraph<N, V>, keyof VariantValuedGraphBase.NonEmpty<any, any, any>>, Streamable.NonEmpty<ValuedGraphElement<N, V>> {
        /**
         * Returns a non-empty `Stream` containing all graph elements of this collection as single tuples for isolated nodes
         * and 3-valued tuples containing the source node, target node, and connection value for connections.
         * @example
         * ```ts
         * ArrowValuedGraphHashed.of([1, 2, 'a'], [2, 3, 'b']).stream().toArray()
         * // => [[1, 2, 'a'], [2, 3, 'b']]
         * ```
         */
        stream(): Stream.NonEmpty<ValuedGraphElement<N, V>>;
    }
    /**
     * Utility interface that provides higher-kinded types for this collection.
     */
    interface Types extends VariantValuedGraphBase.Types {
        readonly normal: VariantValuedGraph<this['_N'], this['_V']>;
        readonly nonEmpty: VariantValuedGraph.NonEmpty<this['_N'], this['_V']>;
    }
}