code: def load_glb(self):
          
          with open(self.path, 'rb') as fd:
              # Check header
              magic = fd.read(4)
              if magic != GLTF_MAGIC_HEADER:
                  raise ValueError("{} has incorrect header {} != {}".format(self.path, magic, GLTF_MAGIC_HEADER))
  
              version = struct.unpack('<I', fd.read(4))[0]
              if version != 2:
                  raise ValueError("{} has unsupported version {}".format(self.path, version))
  
              # Total file size including headers
              _ = struct.unpack('<I', fd.read(4))[0]  # noqa
  
              # Chunk 0 - json
              chunk_0_length = struct.unpack('<I', fd.read(4))[0]
              chunk_0_type = fd.read(4)
              if chunk_0_type != b'JSON':
                  raise ValueError("Expected JSON chunk, not {} in file {}".format(chunk_0_type, self.path))
  
              json_meta = fd.read(chunk_0_length).decode()
  
              # chunk 1 - binary buffer
              chunk_1_length = struct.unpack('<I', fd.read(4))[0]
              chunk_1_type = fd.read(4)
              if chunk_1_type != b'BIN\x00':
                  raise ValueError("Expected BIN chunk, not {} in file {}".format(chunk_1_type, self.path))
  
              self.meta = GLTFMeta(self.path, json.loads(json_meta), binary_buffer=fd.read(chunk_1_length))
docs: Loads a binary gltf file