import { NativeAttributeValue } from '@aws-sdk/lib-dynamodb';

/**
 * Record type for DynamoDB attribute values
 */
type AttributeValues = Record<string, NativeAttributeValue>;
/**
 * Record type for DynamoDB attribute names
 */
type AttributeNames = Record<string, string>;
/**
 * Type representing DynamoDB attribute expression
 */
type DynamoAttributeExpression = {
    ExpressionAttributeValues?: AttributeValues | undefined;
    ExpressionAttributeNames?: AttributeNames | undefined;
};
/**
 * Type representing a placeholder for an attribute expression value
 */
type AttributeValuePlaceholder = `:${string}`;
/**
 * Type representing a placeholder for an attribute expression name
 */
type AttributeNamePlaceholder = `#${string}`;
/**
 * Class to manage names and values for  DynamoDB attribute expressions
 */
declare class AttributeExpressionMap {
    private attributeNames;
    private reverseLookupNames;
    private names;
    private attributeValues;
    private reverseLookupValues;
    private values;
    constructor();
    /**
     * Adds an attribute name to the map and returns its placeholder
     * @param name - The attribute name to add
     * @returns The placeholder for the attribute name
     */
    addName(name: string): AttributeNamePlaceholder;
    /**
     * Adds an attribute value to the map and returns its placeholder
     * @param value - The attribute value to add
     * @returns The placeholder for the attribute value
     */
    addValue(value: NativeAttributeValue): AttributeValuePlaceholder;
    /**
     * Adds both an attribute name and value to the map and returns their placeholders
     * @param name - The attribute name to add
     * @param value - The attribute value to add
     * @returns A tuple containing the placeholders for the attribute name and value
     */
    add(name: string, value: NativeAttributeValue): [AttributeNamePlaceholder, AttributeValuePlaceholder];
    /**
     * Converts the attribute names to DynamoDB format
     */
    toDynamoAttributeNames(): AttributeNames;
    /**
     * Converts the attribute values to DynamoDB format
     */
    toDynamoAttributeValues(): AttributeValues;
    /**
     * Converts both attribute names and values to DynamoDB format
     */
    toDynamoAttributeExpression(): DynamoAttributeExpression;
    /**
     * Checks if the map contains a specific attribute name
     */
    hasName(name: string): boolean;
    /**
     * Checks if the map contains a specific attribute value
     */
    hasValue(value: NativeAttributeValue): boolean;
    /**
     * Retrieves the placeholder for a given attribute name, or `undefined` if not found
     */
    getPlaceholderFromName(name: string): AttributeNamePlaceholder | undefined;
    /**
     * Retrieves the placeholder for a given attribute value, or `undefined` if not found
     */
    getPlaceholderFromValue(value: NativeAttributeValue): AttributeValuePlaceholder | undefined;
    /**
     * Retrieves the attribute name for a given placeholder, or `undefined` if not found
     */
    getNameFromPlaceholder(placeholder: AttributeNamePlaceholder): string | undefined;
    /**
     * Retrieves the attribute value for a given placeholder, or `undefined` if not found
     */
    getValueFromPlaceholder(placeholder: AttributeValuePlaceholder): NativeAttributeValue | undefined;
    /**
     * Gets the count of unique attribute names in the map
     */
    getNameCount(): number;
    /**
     * Gets the count of unique attribute values in the map
     */
    getValueCount(): number;
}

export { AttributeExpressionMap };
export type { AttributeNamePlaceholder, AttributeNames, AttributeValuePlaceholder, AttributeValues, DynamoAttributeExpression };