Add support for placeholders in BatchRequests.
ArraySpecs and GraphSpecs can both be marked as placeholders.
Placeholders are specs that are added to your request that contain important meta data,
but will not result in actually reading data. For example, you may want a RandomLocation
with the ensure_nonempty flag, however not actually need the points for anything.
BatchProviders will remove placeholders before passing the request to process unless
opted in with enable_placeholders in the setup method.
BatchFilters by default will provide placeholders as part of the request during the prepare
method, but not the process method.
Add support for placeholders in BatchRequests. ArraySpecs and GraphSpecs can both be marked as placeholders. Placeholders are specs that are added to your request that contain important meta data, but will not result in actually reading data. For example, you may want a RandomLocation with the
ensure_nonemptyflag, however not actually need the points for anything.BatchProviderswill remove placeholders before passing the request toprocessunless opted in withenable_placeholdersin thesetupmethod.BatchFiltersby default will provide placeholders as part of the request during thepreparemethod, but not theprocessmethod.