Reads a spend record back off a response, or null when the object did not report one.
Null rather than a zeroed record: "the object did not say" and "the object said zero"
lead to different decisions, and collapsing them is how a missing header reads as a fresh budget.
Reads a spend record back off a response, or null when the object did not report one.
Null rather than a zeroed record: "the object did not say" and "the object said zero" lead to different decisions, and collapsing them is how a missing header reads as a fresh budget.