import * as t from '@babel/types';
import { TransformState } from '../../state/types';
import { NodePath } from '@babel/traverse';
/**
 * Validate useGT_callback / getGT_callback / msg() / t()
 * - first argument must be a statically resolvable string expression
 *   (string literal, template literal, binary '+' concatenation, or derive() call)
 * - second argument, if present, $id field + $context field must be a string literal
 */
export declare function validateTranslationFunction(callExprPath: NodePath<t.CallExpression>, state: TransformState): {
    errors: string[];
    content?: string;
    context?: string;
    hash?: string;
    id?: string;
    maxChars?: number;
    format?: string;
    requiresReview?: boolean;
    hasDeriveContext?: boolean;
};
/**
 * Validate useTranslations_callback / getTranslations_callback
 * - always valid (arguments can be dynamic)
 */
export declare function validateUseTranslationsCallback(_callExpr: t.CallExpression): {
    errors: string[];
};
/**
 * Validate useMessages_callback / getMessages_callback
 * - always valid
 */
export declare function validateUseMessagesCallback(_callExpr: t.CallExpression): {
    errors: string[];
};
/**
 * Validates if an expression uses the derive() function correctly
 */
export declare function validateDerive(expr: t.Expression, state: TransformState, errors: string[]): {
    errors: string[];
};
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