public FormInputValueProperty withConcat(FormInputValueProperty... concat) {
        if (this.concat == null) {
            setConcat(new java.util.ArrayList<FormInputValueProperty>(concat.length));
        }
        for (FormInputValueProperty ele : concat) {
            this.concat.add(ele);
        }
        return this;
    }
<p>
A list of form properties to concatenate to create the value to assign to this field property.
</p>
<p>
<b>NOTE:</b> This method appends the values to the existing list (if any). Use
{@link #setConcat(java.util.Collection)} or {@link #withConcat(java.util.Collection)} if you want to override the
existing values.
</p>

@param concat
       A list of form properties to concatenate to create the value to assign to this field property.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-amplifyuibuilder/src/main/java/com/amazonaws/services/amplifyuibuilder/model/FormInputValueProperty.java