Method remove

src/main/java/com/amazon/ion/IonStruct.java:247–247

Removes a field by name, returning a value that was previously associated with the field, or null if this struct contained no such field. Because Ion structs may have repeated fields, additional fields with the given name may still exist after this method returns. If this struct is a

(String fieldName)

     * {@code null} if there was no such field.
     */
    public IonValue remove(String fieldName);


    /**