(lp) ubaid@DESKTOP-TEN39M0:~/projects/lpython$ ./src/bin/lpython
Interactive LPython. Experimental prototype, not ready for end users.
LPython version: 0.22.0-53-g1ef4675ae
  * Use Ctrl-D to exit
  * Use Enter to submit
  * Use Alt-Enter or Ctrl-N to make a new line
    - Editing (Keys: Left, Right, Home, End, Backspace, Delete)
    - History (Keys: Up, Down)
>>> i: i32 = 5                                                                                                                                 1,11  ]
>>> from math import sin                                                                                                                       1,21  ]
>>> sin(i)                                                                                                                                     1,7   ]
>>>    

semantic error: `x` argument of `Sin` must be real or complex
 --> input:1:5
  |
1 | sin(i)
  |     ^ 

if (res.ok) {
    r = res.result;
else {
    <code to print diagnostics is here>
}