Error on adding "text" attribute to extendTraces

I’m trying to stream data (line charts) using extendTraces and the code looks like the following:
Plotly.extendTraces(graph, { x: [[time], [time]], y: [[data[‘ap’]], [data[‘bp’]]] }, [0, 1])

However when I try to add text to the same, I get an error. Following are the line and the error I get:
Plotly.extendTraces(graph, {x: [[time], [time]], y: [[data[‘ap’]], [data[‘bp’]]], text: [[data[‘a’]], [data[‘b’]]]}, [0, 1])

plotly.min.js:7 Uncaught Error: cannot extend missing or non-array attribute: text
at plotly.min.js:7
at I (plotly.min.js:7)
at Object.t [as extendTraces] (plotly.min.js:7)
at HTMLDivElement. (update:421)
at Function.each (jquery-3.3.1.min.js:2)
at w.fn.init.each (jquery-3.3.1.min.js:2)
at Object.success (update:388)
at u (jquery-3.3.1.min.js:2)
at Object.fireWith [as resolveWith] (jquery-3.3.1.min.js:2)
at k (jquery-3.3.1.min.js:2)

Am I doing something wrong here?

This appears to work.

Would you mind sharing a code snippet?