code: def submitted_projects(raw_df):
      
      df = raw_df.astype({'PRONAC': str, 'CgcCpf': str})
      submitted_projects = df.groupby('CgcCpf')[
          'PRONAC'
      ].agg(['unique', 'nunique'])
  
      submitted_projects.columns = ['pronac_list', 'num_pronacs']
  
      return submitted_projects
docs: Return all submitted projects.