public void setPillars(java.util.Collection<PillarMetric> pillars) {
        if (pillars == null) {
            this.pillars = null;
            return;
        }

        this.pillars = new java.util.ArrayList<PillarMetric>(pillars);
    }
<p>
The metrics for the pillars in a lens.
</p>

@param pillars
       The metrics for the pillars in a lens.
aws-java-sdk-wellarchitected/src/main/java/com/amazonaws/services/wellarchitected/model/LensMetric.java