operator + method
Implementation
TokenUsage operator +(TokenUsage other) => TokenUsage(
inputTokens: inputTokens + other.inputTokens,
outputTokens: outputTokens + other.outputTokens,
cacheCreationTokens: cacheCreationTokens + other.cacheCreationTokens,
cacheReadTokens: cacheReadTokens + other.cacheReadTokens,
);