/**
 * Policy Loader
 *
 * Loads and validates guardian policies from YAML files.
 * Policies define the guardrails, rules, and configurations for the guardian.
 */
import type { GuardianPolicy, GuardrailType, PolicyRule } from './types';
/**
 * Load a guardian policy from a YAML file
 */
export declare function loadPolicy(filePath: string): GuardianPolicy;
/**
 * Parse a guardian policy from YAML string
 */
export declare function parsePolicy(yamlContent: string): GuardianPolicy;
/**
 * Validate a guardian policy object
 */
export declare function validatePolicy(policy: unknown): GuardianPolicy;
/**
 * Create a default guardian policy
 */
export declare function createDefaultPolicy(): GuardianPolicy;
/**
 * Merge two policies (second overrides first)
 */
export declare function mergePolicies(base: GuardianPolicy, override: Partial<GuardianPolicy>): GuardianPolicy;
/**
 * Get rules by type from a policy
 */
export declare function getRulesByType(policy: GuardianPolicy, type: GuardrailType): PolicyRule[];
/**
 * Check if a rule is enabled in the policy
 */
export declare function isRuleEnabled(policy: GuardianPolicy, ruleId: string): boolean;
/**
 * Error thrown when policy loading fails
 */
export declare class PolicyLoadError extends Error {
    constructor(message: string);
}
/**
 * Error thrown when policy validation fails
 */
export declare class PolicyValidationError extends Error {
    constructor(message: string);
}
/**
 * Generate a YAML policy template
 */
export declare function generatePolicyTemplate(): string;
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