code: public static CircuitBreakerExports ofCircuitBreakerRegistry(String prefix, CircuitBreakerRegistry circuitBreakerRegistry) {
          requireNonNull(prefix);
          requireNonNull(circuitBreakerRegistry);
          return new CircuitBreakerExports(prefix, circuitBreakerRegistry);
      }
docs: Creates a new instance of {@link CircuitBreakerExports} with specified metrics names prefix and
  {@link CircuitBreakerRegistry} as a source of circuit breakers.
  
  @param prefix the prefix of metrics names
  @param circuitBreakerRegistry the registry of circuit breakers