import ModelShape from '../modelspec/ModelShape';
import ModelSpec from '../modelspec/ModelSpec';
/**
 * A builder class to instantiate a model spec.
 */
export default class ModelSpecBuilder {
    private path;
    private input;
    private output;
    static builder(): ModelSpecBuilder;
    /**
     * Set up the builder to use the default model implementation.
     *
     * Members of this interface can change without a major version bump to accommodate new browser
     * bugs and capabilities. If you extend this type, you might need to rework your code for new minor
     * versions of this library.
     * @returns a reference to the current builder.
     */
    withDefaultModel(): ModelSpecBuilder;
    /**
     * Set up the builder to use the defaults for selfie segmentation model.
     * @returns the builder to allow for fluent API (e.g., ModelSpecBuilder.withSelfieSegmentationDefaults().build()).
     */
    withSelfieSegmentationDefaults(): ModelSpecBuilder;
    /**
     * A method to override the path to the segmentation model.
     * @param path A function that returns the path to the segmentation model.
     * @returns the builder to allow for fluent API (e.g., ModelSpecBuilder.builder().withPath("some path").build()).
     */
    withPath(path: string): ModelSpecBuilder;
    /**
     * A method to override the input shape to the segmentation model.
     * @param input An object that defines input shape of the segmentation model.
     * @returns the builder to allow for fluent API (e.g., ModelSpecBuilder.builder().withInput({}).build()).
     */
    withInput(input: ModelShape): ModelSpecBuilder;
    /**
     * A method to override the output shape to the segmentation model.
     * @param output An object that defines output shape of the segmentation model.
     * @returns the builder to allow for fluent API (e.g., ModelSpecBuilder.builder().withOutput({}).build()).
     */
    withOutput(output: ModelShape): ModelSpecBuilder;
    /**
     * Validate that inputs to the model spec are valid.
     */
    private validate;
    /**
     * A method that returns an instantiated object that implements the ModelSpec interface with values set for
     * the use of the selfie segmentation model.
     * @returns an object that implements the ModelSpec interface.
     */
    build(): ModelSpec;
}