def skip_header(f): ""Given an open file f, reads past its one-line headen Args: f: a freshly opened file in the format of the file grades.csv pass def get_num_assignments(f): Given an open file f, reads its header to determine how many assignments are present in the file. After this function has finished, the header will have been read. Any further reading of f will start from the second line of the file. Args: f: a freshly opened file in the format of the file grades.csv Returns: The number of assignments present in f Raises AssertionError if the number of assignments is less than 1 def skip_header(f): ""Given an open file f, reads past its one-line headen Args: f: a freshly opened file in the format of the file grades.csv pass def get_num_assignments(f): Given an open file f, reads its header to determine how many assignments are present in the file. After this function has finished, the header will have been read. Any further reading of f will start from the second line of the file. Args: f: a freshly opened file in the format of the file grades.csv Returns: The number of assignments present in f Raises AssertionError if the number of assignments is less than 1