/**
 * @license
 * Copyright 2025 Steven Roussey <sroussey@gmail.com>
 * SPDX-License-Identifier: Apache-2.0
 */
import type { IRunConfig, TaskConfig } from "@workglow/task-graph";
import { CreateWorkflow } from "@workglow/task-graph";
import { DataPortSchema } from "@workglow/util/schema";
import type { ModelConfig } from "../model/ModelSchema";
import { AiTask } from "./base/AiTask";
export declare const CountTokensInputSchema: {
    readonly type: "object";
    readonly properties: {
        readonly text: {
            readonly type: "string";
            readonly title: "Text";
            readonly description: "The text to count tokens for";
        };
        readonly model: {
            readonly oneOf: readonly [{
                readonly title: "Model";
                readonly description: `The model ${string}`;
            } & Record<string, never> & {
                readonly format: import(".").TypeModelSemantic;
                readonly type: "string";
            }, {
                readonly type: "object";
                readonly properties: {
                    readonly model_id: {
                        readonly type: "string";
                    };
                    readonly capabilities: {
                        readonly type: "array";
                        readonly items: {
                            readonly type: "string";
                        };
                        readonly "x-ui-editor": "multiselect";
                    };
                    readonly title: {
                        readonly type: "string";
                    };
                    readonly description: {
                        readonly type: "string";
                        readonly "x-ui-editor": "textarea";
                    };
                    readonly provider: {
                        readonly type: "string";
                    };
                    readonly provider_config: {
                        readonly type: "object";
                        readonly properties: {
                            readonly credential_key: {
                                readonly type: "string";
                                readonly format: "credential";
                                readonly "x-ui-hidden": true;
                            };
                            readonly native_dimensions: {
                                readonly type: "integer";
                                readonly description: "Native output vector dimensions for embedding models";
                            };
                            readonly mrl: {
                                readonly type: "boolean";
                                readonly description: "Whether the model supports Matryoshka Representation Learning";
                            };
                        };
                        readonly additionalProperties: true;
                        readonly default: {};
                    };
                    readonly metadata: {
                        readonly type: "object";
                        readonly default: {};
                        readonly "x-ui-hidden": true;
                    };
                };
                readonly required: readonly ["provider", "provider_config"];
                readonly format: "model";
                readonly additionalProperties: true;
            } & Record<string, never> & {
                readonly format: import(".").TypeModelSemantic;
            }];
        } & Record<string, never> & {
            readonly format: import(".").TypeModelSemantic;
        };
    };
    readonly required: readonly ["text", "model"];
    readonly additionalProperties: false;
};
export declare const CountTokensOutputSchema: {
    readonly type: "object";
    readonly properties: {
        readonly count: {
            readonly type: "number";
            readonly title: "Token Count";
            readonly description: "The number of tokens in the text";
        };
    };
    readonly required: readonly ["count"];
    readonly additionalProperties: false;
};
export type CountTokensTaskInput = {
    model: string | ModelConfig;
    text: string;
};
export type CountTokensTaskOutput = {
    count: number;
};
export type CountTokensTaskConfig = TaskConfig<CountTokensTaskInput>;
/**
 * A task that counts the number of tokens in a text string using a specified model's tokenizer.
 * Token counts are model-specific and are useful for managing context window limits and
 * budgeting token usage in RAG pipelines.
 *
 * @extends AiTask
 */
export declare class CountTokensTask extends AiTask<CountTokensTaskInput, CountTokensTaskOutput, CountTokensTaskConfig> {
    static type: string;
    /** Capability required of the model; gated in {@link AiTask.execute}. */
    static readonly requires: ["model.count-tokens"];
    static category: string;
    static title: string;
    static description: string;
    static cacheable: boolean;
    static inputSchema(): DataPortSchema;
    static outputSchema(): DataPortSchema;
}
export declare const countTokens: (input: CountTokensTaskInput, config?: CountTokensTaskConfig, runConfig?: Partial<IRunConfig>) => Promise<CountTokensTaskOutput>;
declare module "@workglow/task-graph" {
    interface Workflow {
        countTokens: CreateWorkflow<CountTokensTaskInput, CountTokensTaskOutput, CountTokensTaskConfig>;
    }
}
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