Function builtin_file_copy 

fn builtin_file_copy(
    args: &[RValue],
    _named: &[(String, RValue)],
    context: &BuiltinContext<'_>,
) -> Result<RValue, RError>

Copy a file from one path to another.

@param from character scalar: source file path @param to character scalar: destination file path @return logical scalar: TRUE on success