val head_padded_fixed_string :
padding:char ->
len:int ->
(string, 'd, 'w, 'l) t__localval tail_padded_fixed_string :
padding:char ->
len:int ->
(string, 'd, 'w, 'l) t__localval string : str_pos:int -> len:int -> (string, 'd, 'w, 'l) t__localval stringo :
?str_pos:int @ local ->
(?len:int @ local ->
(string, 'd, 'w, 'l) t__local @ local) @ localval byteso :
?str_pos:int @ local ->
(?len:int @ local ->
(Core.Bytes.t, 'd, 'w, 'l) t__local @ local) @ local