import { AttributeValue } from 'aws-sdk/clients/dynamodb';
import { Attribute } from '../attribute';
import { DynamoAttributeTypes } from '../dynamo-attribute-types';
export interface IAttributeType<Value> {
    type: DynamoAttributeTypes;
    /**
     * Convert this attribute from the AttributeValue's value to the desired Value.
     */
    fromDynamo: (attributeValue: AttributeValue, attribute: Attribute<Value>) => Value | null;
    /**
     * Convert this attribute from the desired Value into a saveable value DynamoDB will accept.
     */
    toDynamo: (value: Value, attribute: Attribute<Value>) => AttributeValue;
    /**
     * Apply the default
     */
    getDefault?: () => Value | null;
    /**
     * When calling .toJSON() on a Table record, this method will be used to help
     * convert this attribute into an exportable format.
     */
    toJSON?: (value: any, attribute: Attribute<Value>) => any;
    /**
     * When calling Table.fromJSON, this method will be used to help convert a given
     * value into an appropriate attribute value.
     */
    fromJSON?: (value: any) => Value;
}