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Value of a variable from a specific Job Instruction

• Each label for a JS7 - Job - Instruction has a label that  that has to be unique per workflow.
• The following syntax can be used for to access the value of a variable as returned by a specific Job Instruction:
  • variable("varName", label = aLabel) or variable('varName', label = aLabel)
  • variable(key = "varName", label = aLabel) or variable(key = 'varName', label = aLabel)
  •  Note that the value of the label is not quoted!
• A default value can be added too (see previous chapter)
  • The order of appearance for label and default is arbitrary.

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