original_docstring: Returns True if the given host exists in any role's host list.
docstring: Returns True if the given host exists in any role's host list.
docstring_tokens: Returns True if the given host exists in any role ' s host list .
code: def exists(hostname):
      """Returns True if the given host exists in any role's host list."""
      if not get_role(hostname):
          return False
      return True
code_tokens: def exists ( hostname ) : if not get_role ( hostname ) : return False return True
short_docstring: Returns True if the given host exists in any role's host list.
short_docstring_tokens: Returns True if the given host exists in any role ' s host list .
comment: """Returns True if the given host exists in any role's host list."""