Creates a single interaction in a process step. name and type are required, the remaining properties depend on the type. For a multiple-choice interaction the choices given in responses are created as well. For a number interaction toleranceUp and toleranceDown are interpreted according to toleranceType, shown during execution via visibleToleranceUp / visibleToleranceDown and turned into a failure via failIfLess / failIfMore. A table interaction is created as an empty 2x3 table; its columns and rows cannot be configured here, and any columns or rows sent in the payload are ignored. The name is stored for the locale given by lang, which defaults to the document default locale. The interaction is inserted at position, or appended at the end of the process step if it is omitted.