PseudoFile.readWrite constructor

*[<Null safety>](https://dart.dev/null-safety)*

PseudoFile.readWrite(int _capacity, ReadFn? _readFn, WriteFn? _writeFn)

Implementation

PseudoFile.readWrite(this._capacity, this._readFn, this._writeFn)
    : assert(_writeFn != null),
      assert(_readFn != null),
      assert(_capacity > 0);