/**
 * Convert a camelCase or PascalCase string to snake_case.
 *
 * @example
 * toSnakeCase("createdAt") // "created_at"
 * toSnakeCase("PostStatus") // "post_status"
 * toSnakeCase("authorId") // "author_id"
 */
export declare function toSnakeCase(str: string): string;
/**
 * Return a Go-safe type name for a Prisma model.
 * Appends "Entity" if the model name conflicts with a Go keyword.
 */
export declare function safeGoTypeName(modelName: string): string;
/**
 * Convert a PascalCase model name to a lowercase file name for Go files.
 *
 * @example
 * modelToFileName("User") // "user"
 * modelToFileName("BlogPost") // "blog_post"
 */
export declare function modelToFileName(modelName: string): string;
/**
 * Generate a Go file header comment indicating the file is auto-generated.
 */
export declare function fileHeader(): string;
/**
 * Indent each line of a string by a given number of tabs.
 */
export declare function indent(str: string, tabs?: number): string;
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