How to Extract center point coordinate of a solid from a STEP file

[mirnaH7]

i am trying to get coordinates of the shapes i have in the STEP file ex( vertex , center point). using the pythonocc-core library what i did was to: 1- read step file 2- read shape -> returns 1 shape 3- from that shape i want to get the solids ( from topods_Solid) how can i get properties of the solid shape , or how to get the faces, edges in that solid in order to get its properties from step file how can i use the pythononcc-utils to do such thing