42     def __init__(self, pm_path : str, img_path : str, pm_offset: int,  argument
47         self.pm_path = pm_path
48         self.img_path = img_path
49         self._SpPkgHeader = namedtuple("SpPkgHeader",
61         if img_offset - pm_offset < self.pm_size:
64         self.pm_offset = pm_offset
65         self.img_offset = img_offset
67     def __str__(self):  argument
76     def magic(self):  argument
80     def version(self):  argument
84     def pm_size(self):  argument
85         return os.path.getsize(self.pm_path)
88     def img_size(self):  argument
89         return os.path.getsize(self.img_path)
92     def header(self):  argument
93         return self._SpPkgHeader(
94                 self.magic,
95                 self.version,
96                 self.pm_offset,
97                 self.pm_size,
98                 self.img_offset,
99                 self.img_size)
102     def header_size(self):  argument
103         return len(self._SpPkgHeader._fields)
105     def generate(self, f_out : str):  argument
107             for h in self.header:
110             output.seek(self.pm_offset)
111             with open(self.pm_path, "rb") as pm:
113             output.seek(self.img_offset)
114             with open(self.img_path, "rb") as img: