The licence one purchase was delivered under, exactly as the work's source granted it.
type is the source's own licence type: ON_DEMAND_LICENSE (partial use),
ON_DEMAND_FULL_USE_LICENSE (full use) or public-domain (an SEC filing), and a source
may add others. permissions lists what was granted (e.g. PARTIAL_USE), empty for
public-domain. document_url points at /v1/purchases/{id}/license_document, which
purchases.licenseDocument(id) downloads; it is null until the document is captured.
The licence one purchase was delivered under, exactly as the work's source granted it.
typeis the source's own licence type:ON_DEMAND_LICENSE(partial use),ON_DEMAND_FULL_USE_LICENSE(full use) orpublic-domain(an SEC filing), and a source may add others.permissionslists what was granted (e.g.PARTIAL_USE), empty forpublic-domain.document_urlpoints at/v1/purchases/{id}/license_document, whichpurchases.licenseDocument(id)downloads; it isnulluntil the document is captured.