Whether viser multiple line charts can modify tooltip text through the alias attribute

A single line chart can be achieved by modifying the alias property. What should a multiline do (without considering the following scheme)?

  • Custom tooltip
  • modify the data source structure or change the transform configuration
For example, please see https://viserjs.github.io/dem.
purpose: change" London "and" Tokyo "on tooltip to Chinese" London "and" Tokyo "

Nov.10,2021
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