I have two data sets "data_y" and "data_lags". "data_y" contains variable y1 and a data set "data_lags" contains variables "y1_lag1" "y1_lag2" "y1_lag3" "y1_lag4" "y1_lag5" "y1_lag6" "y1_lag7" "y1_lag8" "y1_lag9" "y1_lag10".
Please create a function which returns Bayesian linear regression with Minnesota prior using rstan package.