The following function for $t>0$
```
f[t_]:=1/(8 (-1+E^(2 t)) \[Pi]^(3/2)) E^t (MeijerG[{{1/2,1,3/2},{}},{{3/2},{}},-((2 I)/(5 t)),1/2]+MeijerG[{{1/2,1,3/2},{}},{{3/2},{}},(2 I)/(5 t),1/2]-MeijerG[{{1/2,1,3/2},{}},{{3/2},{}},-((2 I)/(3 t)),1/2]-MeijerG[{{1/2,1,3/2},{}},{{3/2},{}},(2 I)/(3 t),1/2])
```
is actually an elementary function, by
```
Plot[Evaluate[4Exp[4t]f[t]],{t,0,1},WorkingPrecision->20]
```
[![enter image description here][1]][1]

but `FunctionExpand` can not simplify it,
```
FunctionExpand[f[t],Assumptions->t>0]
```
[![enter image description here][2]][2]

Mathematica will automatically abort the evaluation. Using 
```
AbortProtect@Trace@FunctionExpand[f[t],Assumptions->t>0]
```
we can trace the intermediate steps, but I didn't get some useful information from that.


Is there some other way to deal with MeijerG functions (if not for Mathematica, is there some useful Python package for this?)


  [1]: https://i.sstatic.net/n5Y24.png
  [2]: https://i.sstatic.net/Jz5aU.png