code: public static ParameterTool fromPropertiesFile(String path) throws IOException {
  		File propertiesFile = new File(path);
  		return fromPropertiesFile(propertiesFile);
  	}
docs: Returns {@link ParameterTool} for the given {@link Properties} file.
  
  @param path Path to the properties file
  @return A {@link ParameterTool}
  @throws IOException If the file does not exist
  @see Properties