Holds information about a database report.

Members: database_name List of database names. (can have multiple dbs) num_letters_in_database Number of letters in the database. (int) num_sequences_in_database List of number of sequences in the database. posted_date List of the dates the databases were posted. ka_params A tuple of (lambda, k, h) values. (floats) gapped ka_params_gap A tuple of (lambda, k, h) values. (floats)