render_ot.py

import bpy

class RENDER_OT_test(bpy.types.Operator):
    bl_idname = 'render.oha_test'
    bl_label = 'Test'
    bl_options = {'REGISTER', 'UNDO'}

    def execute(self, context):
        self.report({'DEBUG', 'INFO'}, 'Printing report to Info window.')
        return {'FINISHED'}
 
    
def register():
    bpy.utils.register_class(RENDER_OT_test)
 
 
def unregister():
    bpy.utils.unregister_class(RENDER_OT_test)
 
 
if __name__ == "__main__":
    register()