code: def int_to_bytes(x):
      # Add one bit because a signed N-bit int can only represent up to 2^(N-1) - 1
      # (instead of an unsigned N-bit int which can represent up to 2^N - 1).
      # For example, 128 requires 9 bits (therefore two bytes) in twos complement.
      return x.to_bytes(
          x.bit_length() // 8 + 1, byteorder="little", signed=True
      )
  
label_desc: Use image node_id 1 for calling a global function with example usage: int_to_bytes(x) and returns: x