/**
 * Configuration management for Amazon SageMaker Provider
 *
 * This module handles loading, validation, and management of SageMaker
 * configuration from environment variables, files, and defaults.
 */
import type { SageMakerConfig, SageMakerModelConfig } from "../../types/index.js";
/**
 * Load and validate SageMaker configuration from environment variables
 *
 * Region priority:
 * 1. region parameter (highest priority)
 * 2. SAGEMAKER_REGION environment variable
 * 3. AWS_REGION environment variable
 * 4. Default value "us-east-1" (lowest priority)
 *
 * @param region - Optional region parameter override
 * @returns Validated SageMaker configuration
 * @throws {Error} When required configuration is missing or invalid
 */
export declare function getSageMakerConfig(region?: string, 
/**
 * Per-request credentials, applied BEFORE validation.
 *
 * They have to participate in validation rather than be overlaid onto an
 * already-validated result: this function throws when accessKeyId or
 * secretAccessKey is empty, so a caller passing credentials explicitly
 * still had to have AWS_ACCESS_KEY_ID and AWS_SECRET_ACCESS_KEY set in the
 * environment or construction failed before their values were ever looked
 * at. That made `credentials.sagemaker` unusable on its own, which is the
 * entire point of per-request credentials.
 */
overrides?: Partial<Pick<SageMakerConfig, "region" | "accessKeyId" | "secretAccessKey" | "sessionToken" | "endpoint">>): SageMakerConfig;
/**
 * Load and validate SageMaker model configuration
 *
 * @param endpointName - Name of the SageMaker endpoint
 * @returns Validated model configuration
 */
export declare function getSageMakerModelConfig(endpointName?: string): SageMakerModelConfig;
/**
 * Get the default SageMaker endpoint name from environment variables
 *
 * @returns Default endpoint name
 */
export declare function getDefaultSageMakerEndpoint(): string;
/**
 * Get SageMaker model name from environment variables
 *
 * @returns Model name
 */
export declare function getSageMakerModel(): string;
/**
 * Validate AWS credentials are properly configured
 *
 * @param config - SageMaker configuration to validate
 * @returns true if credentials are valid
 * @throws {Error} When credentials are missing or invalid
 */
export declare function validateAWSCredentials(config: SageMakerConfig): boolean;
/**
 * Create a comprehensive configuration summary for debugging
 *
 * @returns Configuration summary (sensitive data masked)
 */
export declare function getConfigurationSummary(): Record<string, unknown>;
/**
 * Clear configuration cache (useful for testing or credential rotation)
 */
export declare function clearConfigurationCache(): void;
/**
 * Load configuration from a JSON file (alternative to environment variables)
 *
 * @param filePath - Path to configuration JSON file
 * @returns Loaded configuration
 */
export declare function loadConfigurationFromFile(filePath: string): Promise<SageMakerConfig>;
/**
 * Check if SageMaker provider is properly configured
 *
 * @returns Configuration check result
 */
export declare function checkSageMakerConfiguration(): {
    configured: boolean;
    issues: string[];
    summary: Record<string, unknown>;
};