A temporary list of Accounts is created from the Source List. For each of those Accounts, we examine the inflow Supplies which
(1) link an Account on a different upstream Object, and
(2) have the indicated ReleaseType, and
(3) have the indicated Destination
In the case of SupplyNamesTo, for each of these Accounts being considered, the names of all related Supplies matching the criteria are added to the returned List. In the case of SupplyNamesTo1to1, there should be zero or one matching Supplies:
(1) If there are no Supplies matching the criteria, then an empty string ("") is added to the returned List, or
(2) If there is exactly ONE Supply matching the criteria, then the name of that Supply is added to the returned List, or
(3) If there is more than one Supply matching the criteria, then an error is generated.
In this way, the list returned by SupplyNamesTo is guaranteed to contain exactly one string for each Account in the Source List.
If the ReleaseType argument or the Destination argument is "NONE," then only Supplies having the default (unassigned) attribute of that type are considered.
If the ReleaseType argument or the Destination argument is "ALL," then that Supply attribute is ignored.
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