code: public Filters withKeyTypes(String... keyTypes) {
          if (this.keyTypes == null) {
              setKeyTypes(new java.util.ArrayList<String>(keyTypes.length));
          }
          for (String ele : keyTypes) {
              this.keyTypes.add(ele);
          }
          return this;
      }
docs: <p>
  Specify one or more algorithms that can be used to generate key pairs.
  </p>
  <p>
  <b>NOTE:</b> This method appends the values to the existing list (if any). Use
  {@link #setKeyTypes(java.util.Collection)} or {@link #withKeyTypes(java.util.Collection)} if you want to override
  the existing values.
  </p>
  
  @param keyTypes
  Specify one or more algorithms that can be used to generate key pairs.
  @return Returns a reference to this object so that method calls can be chained together.
  @see KeyAlgorithm