Not all data source providers are created equal. This command is expected to return a dict that describes the data source's capabilities. The keys to this dict are capability names. The values generally are booleans that indicate whether that capability is supported.
At present the following capabilities are defined:
If true the provider implements the pause and resume procs and they do what they are advertised to do.
If true the provider will honor the
title parameter passed to the
begin
command.
If true the provider will honer the
runNumber parameter
passed to the
begin
command.