code: def get_column_info(engine: Engine, tablename: str,
                      columnname: str) -> Optional[SqlaColumnInspectionInfo]:
      
      for info in gen_columns_info(engine, tablename):
          if info.name == columnname:
              return info
      return None
docs: For the specified column in the specified table, get column information
      as a :class:`SqlaColumnInspectionInfo` object (or ``None`` if such a
      column can't be found).