Configuration for a single metric to map from an Inspect property
to a Cobalt metric.
ParsedSelector stores the information Sampler needs to use the selector.
Configuration for a single project to map Inspect data to its Cobalt metrics.
Container for all configurations needed to instantiate the Sampler infrastructure.
Includes:
- Project configurations.
- Minimum sample rate.
A selector entry in the configuration file is either a single string
or a vector of string selectors. Either case is converted to a vector
with at least one element.