def copy(self, deep_copy_buffers: bool = True) -> Self:
        """Creates a copy of the object.
        Args:
            deep_copy_buffers: If True, buffers will also be deep-copied.
            Otherwise the copy will share a reference to the original object's
            buffers.
        Returns:
            A copied instance.
        """
Creates a copy of the object.
        Args:
            deep_copy_buffers: If True, buffers will also be deep-copied.
            Otherwise the copy will share a reference to the original object's
            buffers.
        Returns:
            A copied instance.
        
cirq-core/cirq/qis/quantum_state_representation.py