code: def to_tsv(self, include_readonly=True):
          '''
          Returns the instance's column values as a tab-separated line. A newline is not included.
  
          - `include_readonly`: if false, returns only fields that can be inserted into database.
          '''
          data = self.__dict__
          fields = self.fields(writable=not include_readonly)
          return '\t'.join(field.to_db_string(data[name], quote=False) for name, field in iteritems(fields)f to_tsv(self, include_readonly=True):
          '''
          Returns the instance's column values as a tab-separated line. A newline is not included.
  
          - `include_readonly`: if false, returns only fields that can be inserted into database.
          '''
          data = self.__dict__
          fields = self.fields(writable=not include_readonly)
          return '\t'.join(field.to_db_string(data[name], quote=False) for name, field in iteritems(fields))
docs: Returns the instance's column values as a tab-separated line. A newline is not included.
  
          - `include_readonly`: if false, returns only fields that can be inserted into database.