import * as z from 'zod';
/**
 * Schema for LTI Assignment and Grade Services (AGS) Line Item.
 * Represents a gradebook column/assignment according to LTI AGS v2.0 specification.
 *
 * @see https://www.imsglobal.org/spec/lti-ags/v2p0/#line-item-service
 */
export declare const LineItemSchema: z.ZodObject<{
    id: z.ZodURL;
    scoreMaximum: z.ZodNumber;
    label: z.ZodString;
    resourceId: z.ZodOptional<z.ZodString>;
    resourceLinkId: z.ZodOptional<z.ZodString>;
    tag: z.ZodOptional<z.ZodString>;
    startDateTime: z.ZodOptional<z.ZodISODateTime>;
    endDateTime: z.ZodOptional<z.ZodISODateTime>;
    gradesReleased: z.ZodOptional<z.ZodBoolean>;
}, z.core.$loose>;
/**
 * Schema for creating a new LTI Assignment and Grade Services (AGS) Line Item.
 * Omits the 'id' field since it's generated by the platform upon creation.
 *
 * @see https://www.imsglobal.org/spec/lti-ags/v2p0/#line-item-service
 */
export declare const CreateLineItemSchema: z.ZodObject<{
    scoreMaximum: z.ZodNumber;
    label: z.ZodString;
    resourceId: z.ZodOptional<z.ZodString>;
    tag: z.ZodOptional<z.ZodString>;
    startDateTime: z.ZodOptional<z.ZodISODateTime>;
    endDateTime: z.ZodOptional<z.ZodISODateTime>;
    resourceLinkId: z.ZodOptional<z.ZodString>;
    gradesReleased: z.ZodOptional<z.ZodBoolean>;
}, z.core.$loose>;
/**
 * Schema for updating an existing LTI Assignment and Grade Services (AGS) Line Item.
 * Omits 'id' and 'resourceLinkId' fields as they are immutable per LTI AGS specification.
 * Tools MUST NOT change these values during updates.
 *
 * @see https://www.imsglobal.org/spec/lti-ags/v2p0/#line-item-service
 */
export declare const UpdateLineItemSchema: z.ZodObject<{
    scoreMaximum: z.ZodNumber;
    label: z.ZodString;
    resourceId: z.ZodOptional<z.ZodString>;
    tag: z.ZodOptional<z.ZodString>;
    startDateTime: z.ZodOptional<z.ZodISODateTime>;
    endDateTime: z.ZodOptional<z.ZodISODateTime>;
    gradesReleased: z.ZodOptional<z.ZodBoolean>;
}, z.core.$loose>;
/**
 * Schema for an array of line items returned from the line items service.
 */
export declare const LineItemsSchema: z.ZodArray<z.ZodObject<{
    id: z.ZodURL;
    scoreMaximum: z.ZodNumber;
    label: z.ZodString;
    resourceId: z.ZodOptional<z.ZodString>;
    resourceLinkId: z.ZodOptional<z.ZodString>;
    tag: z.ZodOptional<z.ZodString>;
    startDateTime: z.ZodOptional<z.ZodISODateTime>;
    endDateTime: z.ZodOptional<z.ZodISODateTime>;
    gradesReleased: z.ZodOptional<z.ZodBoolean>;
}, z.core.$loose>>;
/**
 * Type representing a validated line item for LTI AGS.
 * Represents a gradebook column or assignment.
 */
export type LineItem = z.infer<typeof LineItemSchema>;
/**
 * Type representing an array of line items.
 */
export type LineItems = z.infer<typeof LineItemsSchema>;
/**
 * Type representing data required to create a new line item for LTI AGS.
 * Contains all LineItem fields except the platform-generated 'id'.
 */
export type CreateLineItem = z.infer<typeof CreateLineItemSchema>;
/**
 * Type representing data for updating an existing line item for LTI AGS.
 * Contains all LineItem fields except immutable 'id' and 'resourceLinkId'.
 */
export type UpdateLineItem = z.infer<typeof UpdateLineItemSchema>;
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