sets the argument query node of the unary operator . concode_field_sep QueryNode mArgument concode_elem_sep UnaryOperatorKind mUnaryOperatorKind concode_field_sep UnaryOperatorKind getUnaryOperatorKind concode_elem_sep QueryNode deepClone concode_elem_sep QueryNode getArgument concode_elem_sep QueryNodeKind getKind concode_elem_sep T accept
void function ( QueryNode arg0 ) { this . mArgument = arg0 ; }