code: public Query addBias(String name, String content, Bias.Strength strength) {
      biasing.getBiases().add(new Bias().setName(name).setContent(content).setStrength(strength));
      return this;
    }
docs: <code>
  
  See {@link Query#setBiasing(Biasing)}. This is a convenience method to add an individual bias.
  
  </code>
  
  @param name
  The name of the field to bias on
  @param content
  The value to bias
  @param strength
  The strength of the bias. Legal values are: "Absolute_Increase", "Strong_Increase", "Medium_Increase",
  "Weak_Increase", "Leave_Unchanged", "Weak_Decrease", "Medium_Decrease", "Strong_Decrease", "Absolute_Decrease".