Renames the attributes.
aliases: The list new attribute names to use from now on. If the flag
aliaseswill be interpreted as pairs of (old_name, new_name). See the examples below.
type: By default, each schema has the name of the source from which the data comes from (i.e. it is the name of the type that is processed by this operator). With this parameter the type (source) name can be changed. This is needed in the SASE operator.
pairs:Optional boolean value that flags, if the given list of aliases should be interpreted as pairs of (old_name, new_name). Default value is false.