old_contents: import unicodedata
  
  from .attribute import Attribute, RenditionAttribute
  from .misc import is_printable_char
  
  
  
  class Character:
    def __init__(self, value, attr=RenditionAttribute.normal):
      assert is_printable_char(value) and isinstance(attr, int)
      self.__value = value
      self.__attr = attr
  
    @property
    def value(self):
      return self.__value
  
    @property
    def attr(self):
      return self.__attr
  
    @property
    def width(self):
      return 1 if unicodedata.east_asian_width(self.value) not in {"W", "F"} \
             else 2
  
new_contents: import unicodedata
  
  from .attribute import RenditionAttribute
  from .misc import is_printable_char
  
  
  
  class Character:
    def __init__(self, value, attr=RenditionAttribute.normal):
      assert is_printable_char(value) and isinstance(attr, int)
      self.__value = value
      self.__attr = attr
  
    @property
    def value(self):
      return self.__value
  
    @property
    def attr(self):
      return self.__attr
  
    @property
    def width(self):
      return 1 if unicodedata.east_asian_width(self.value) not in {"W", "F"} \
             else 2
  
subject: Remove extra imported class