public void putToProperties(java.lang.String key, java.lang.String val) {
    if (this.properties == null) {
      this.properties = new java.util.HashMap<java.lang.String,java.lang.String>();
    }
    this.properties.put(key, val);
  }
Returns true if field keySpec is set (has been assigned a value) and false otherwise
amoro-common/src/main/gen-java/org/apache/amoro/api/TableMeta.java