Hi,

For example I have created a mesh (without using a code), how can I use the mesh in the script like I usually add a primitive object?

Maybe somewhat like bpy.ops.mesh.myMesh_add() ??

Thank you.
And I am sorry for grammar and (maybe) mistaken word.

you gotta turn it into an operator

have a look at the add mesh extra objects script collection, they use different techniques to do this
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