code: public void setPolicyRoles(java.util.Collection<PolicyRole> policyRoles) {
          if (policyRoles == null) {
              this.policyRoles = null;
              return;
          }
  
          this.policyRoles = new com.amazonaws.internal.SdkInternalList<PolicyRole>(policyRoles);
      }
docs: <p>
  A list of IAM roles that the policy is attached to.
  </p>
  
  @param policyRoles
  A list of IAM roles that the policy is attached to.