What type of argument is used to retrieve data from an invoked workflow?

In the context of workflows, particularly in robotic process automation (RPA), an "Out" argument is utilized to retrieve data from an invoked workflow. This type of argument allows the workflow that is being invoked to send data back to the main workflow or calling context after execution.

When you invoke another workflow, you may want to obtain certain results or data generated during its execution. "Out" arguments are specifically designed for this purpose; they are a means of passing information back to the caller after the workflow completes its activities. This enables the main workflow to utilize the data that was produced in the sub-workflow, facilitating effective data management and flow within the overall automation process.

In contrast, "In" arguments are used to pass data into the workflow, while "In/Out" arguments can serve both functions—allowing data to be passed in and out. The option "Read" does not specifically refer to the standard argument types used in workflow invocations within RPA, which makes it less applicable in this context. Thus, the choice of "Out" accurately reflects the purpose of retrieving data from an invoked workflow.