public void putToMy_string_string_map(java.lang.String key, java.lang.String val) {
    if (this.my_string_string_map == null) {
      this.my_string_string_map = new java.util.HashMap<java.lang.String,java.lang.String>();
    }
    this.my_string_string_map.put(key, val);
  }
Returns true if field my_binary is set (has been assigned a value) and false otherwise
serde/src/gen/thrift/gen-javabean/org/apache/hadoop/hive/serde2/thrift/test/MegaStruct.java