setInt32 method Null safety
Sets the four bytes starting at the specified
byteOffset in this
object to the two's complement binary representation of the specified
value, which must fit in four bytes.
In other words,
value must lie
between -231 and 231 - 1, inclusive.
byteOffset must be non-negative, and
byteOffset + 4 must be less than or equal to the length of this object.
void setInt32(int byteOffset, int value, [Endian endian = Endian.big]);