{"contentBlockStart":{"contentBlockIndex":0,"start":{"toolUse":{"toolUseId":"tool-use-id","name":"test-tool"}}}}
{"contentBlockDelta":{"contentBlockIndex":0,"delta":{"toolUse":{"input":"{\"value\":"}}}}
{"contentBlockDelta":{"contentBlockIndex":0,"delta":{"toolUse":{"input":"\"Sparkle Day\"}"}}}}
{"contentBlockStop":{"contentBlockIndex":0}}
{"metadata":{"usage":{"inputTokens":125,"outputTokens":45,"totalTokens":170},"metrics":{"latencyMs":234}}}
{"messageStop":{"stopReason":"tool_use"}}
