old_contents: from bisections import bisect, percent_split, optimize_split_by_rclust
  from essentials import suggest_essential_reactions
  from limit_reactions import limit_reactions_by_compound
  from maps_to_proteins import suggest_reactions_without_proteins, suggest_reactions_with_proteins
  from media import suggest_from_media
  from orphan_compound import suggest_by_compound
  from probability import compound_probability
  from reaction_minimization import calculate_precision_recall
  from reaction_minimization import minimize_additional_reactions
  from reaction_minimization import minimize_by_accuracy
  from roles import suggest_from_roles
  from subsystem import suggest_reactions_from_subsystems
  
  __all__ = ['suggest_from_media',
             'limit_reactions_by_compound',
             'suggest_by_compound',
             'suggest_essential_reactions', 'suggest_reactions_from_subsystems',
             'suggest_reactions_without_proteins', 'suggest_reactions_with_proteins',
             'suggest_from_roles', 'compound_probability', 'minimize_additional_reactions',
             'bisect', 'percent_split', 'optimize_split_by_rclust', 'minimize_by_accuracy',
             'calculate_precision_recall'
             ]
  
new_contents: from bisections import bisect, percent_split, optimize_split_by_rclust
  from essentials import suggest_essential_reactions
  from limit_reactions import limit_reactions_by_compound
  from maps_to_proteins import suggest_reactions_without_proteins, suggest_reactions_with_proteins
  from media import suggest_from_media
  from orphan_compound import suggest_by_compound
  from probability import compound_probability
  from reaction_minimization import calculate_precision_recall
  from reaction_minimization import minimize_additional_reactions
  from reaction_minimization import minimize_by_accuracy
  from roles import suggest_from_roles
  from subsystem import suggest_reactions_from_subsystems
  from ecnumbers import suggest_reactions_using_ec
  
  __all__ = ['suggest_reactions_using_ec',
             'suggest_from_media',
             'limit_reactions_by_compound',
             'suggest_by_compound',
             'suggest_essential_reactions', 'suggest_reactions_from_subsystems',
             'suggest_reactions_without_proteins', 'suggest_reactions_with_proteins',
             'suggest_from_roles', 'compound_probability', 'minimize_additional_reactions',
             'bisect', 'percent_split', 'optimize_split_by_rclust', 'minimize_by_accuracy',
             'calculate_precision_recall'
             ]
  
subject: Update __init__.py file with EC gap-filling function.