code: def get_column_type(engine: Engine, tablename: str,
                      columnname: str) -> Optional[TypeEngine]:
      
      for info in gen_columns_info(engine, tablename):
          if info.name == columnname:
              return info.type
      return None
docs: For the specified column in the specified table, get its type as an
      instance of an SQLAlchemy column type class (or ``None`` if such a column
      can't be found).
  
      For more on :class:`TypeEngine`, see
      :func:`cardinal_pythonlib.orm_inspect.coltype_as_typeengine`.