code: public void setPolicyTypes(java.util.Collection<String> policyTypes) {
          if (policyTypes == null) {
              this.policyTypes = null;
              return;
          }
  
          this.policyTypes = new com.amazonaws.internal.SdkInternalList<String>(policyTypes);
      }
docs: <p>
  One or more policy types. The valid values are <code>SimpleScaling</code>, <code>StepScaling</code>, and
  <code>TargetTrackingScaling</code>.
  </p>
  
  @param policyTypes
  One or more policy types. The valid values are <code>SimpleScaling</code>, <code>StepScaling</code>, and
  <code>TargetTrackingScaling</code>.