code: public Deployment deployment(DeploymentTargetDescription target) {
          Validate.notNull(target, "Target must be specified");
          if (DeploymentTargetDescription.DEFAULT.equals(target)) {
              return findDefaultDeployment();
          }
          return findMatchingDeployment(target);
      }
docs: Get a {@link DeploymentDescription} with a specific name if it exists.
  
  @param target
  The name of the {@link DeploymentDescription}
  
  @return Defined Deployment or null if not found.