Layer Estimates:

Layer: bbbbb3 (ID:0)
Count: 1
Extent:

XMin: -831747.523499999
YMin: 4660208.8967
XMax: -812026.770199999
YMax: 4676260.6727
Spatial Reference: 102100 (3857)

Layer: aaaa3 (ID:1)
Count: 16