ConfigureErrorMissingKeys is sent as a Detail on an error returned from `ResourceProvider.Configure`.

ErrorResourceInitFailed is sent as a Detail `ResourceProvider.{Create, Update}` fail because a resource was created successfully, but failed to initialize.

PluginDependency is information about a plugin that a program may depend upon.

PluginInfo is meta-information about a plugin that is used by the system.

ReadResourceRequest contains enough information to uniquely qualify and read a resource's state.

ReadResourceResponse contains the result of reading a resource's state.

RegisterResourceOutputsRequest adds extra resource outputs created by the program after registration has occurred.

RegisterResourceRequest contains information about a resource object that was newly allocated.

RegisterResourceResponse is returned by the engine after a resource has finished being initialized.

RunRequest asks the interpreter to execute a program.

RunResponse is the response back from the interpreter/source back to the monitor.

LogSeverity is the severity level of a log message.