code: def load_page_buffer(self, buffer_number, address, bytes):
          
          assert buffer_number < len(self.page_buffers), "Invalid buffer number"
  
          # prevent security settings from locking the device
          bytes = self.override_security_bits(address, bytes)
  
          # transfer the buffer to device RAM
          self.target.write_memory_block8(self.page_buffers[buffer_number], bytes)
docs: !
          @brief Load data to a numbered page buffer.
          
          This method is used in conjunction with start_program_page_with_buffer() to implement
          double buffered programming.