export interface ParsedClaudeUsage {
    clientInputTokens?: number;
    clientOutputTokens?: number;
    clientCacheWriteTokens?: number;
    clientCacheReadTokens?: number;
    clientTotalTokens?: number;
    costUsd?: number;
}
export declare function dedupeStreamingUsageEntries(entries: Array<{
    usage: ParsedClaudeUsage;
    messageId?: string;
}>): ParsedClaudeUsage[];
export declare function parseClaudeUsageFromOutput(stdout: string, stderr: string): ParsedClaudeUsage | null;
export declare function mergeClaudeUsageWithTotal(usage: ParsedClaudeUsage): ParsedClaudeUsage;
export declare function estimateUsageFromTextLength(_text: string): ParsedClaudeUsage | null;