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