code: def get_by_name(self, name, style_type = None):
          
          for st in self.styles.values():
              if st:
                  if st.name == name:
                      return st
  
          if style_type and not st:
              st = self.styles.get(self.default_styles[style_type], None)            
          return st
docs: Find style by it's descriptive name.
  
          :Returns:
            Returns found style of type :class:`ooxml.doc.Style`.