code: def _parse_section(name, source):
      # type: (str, str) -> List[str]
      
      section = textwrap.dedent(_get_section(name, source)[7:])
      commands = []  # type: List[str]
      for line in section.splitlines():
          if not commands or line[:1].isalpha() and line[:1].islower():
              commands.append(line)
          else:
              commands[-1] = '{} {}'.format(commands[-1].strip(), line.strip())
      return commands
docs: Yield each section line.
  
      Note:
          Depending on how it is wrapped, a section line can take up more than
          one physical line.
  
      Args:
          name: The name of the section to extract (e.g. "Usage").
          source: The usage string to parse.
  
      Returns:
          A list containing each line, de-wrapped by whitespace from the source
          code.
          If the section is defined multiple times in the source code, all lines
          from all sections with that name will be returned.