<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def read_file(file_path_name):
 """ Read the content of the specified file. @param file_path_name: path and name of the file to read. @return: content of the specified file. """

    with io.open(os.path.join(os.path.dirname(__file__), file_path_name), mode='rt', encoding='utf-8') as fd:
        return fd.read()