Store Component

For the store step, we have a note that says:

"Should this step allow sequences on its input?"

That would mean we could serialize a sequence of documents as
a text entity.  But we can't then load this with the load step.

I propose we answer that note with "NO".

-- 
--Alex Milowski
"The excellence of grammar as a guide is proportional to the paucity of the
inflexions, i.e. to the degree of analysis effected by the language
considered."

Bertrand Russell in a footnote of Principles of Mathematics