FeatureClassToNumPyArray/other ArcMap functions in QGIS?

So copying and pasting from the PyQGIS cookbook I have a function that gets the attribute table as a pandas dataframe, the geometry bit could easily be uncommented and loaded into the DF as well.

import pandas as pd
def getAttem(layer= iface.activeLayer()):
    """retrieve every feature with its attributes"""
    fldz = [field.name() for field in layer.fields()]
    attrz = []
    features = layer.getFeatures()
    for feature in features:
        # print("Feature ID: ", feature.id())
        # # fetch geometry
        # # show some information about the feature geometry
        # geom = feature.geometry()
        # geomSingleType = QgsWkbTypes.isSingleType(geom.wkbType())
        # if geom.type() == QgsWkbTypes.PointGeometry:
        #     # the geometry type can be of single or multi type
        #     if geomSingleType:
        #         x = geom.asPoint()
        #         print("Point: ", x)
        #     else:
        #         x = geom.asMultiPoint()
        #         print("MultiPoint: ", x)
        # elif geom.type() == QgsWkbTypes.LineGeometry:
        #     if geomSingleType:
        #         x = geom.asPolyline()
        #         print("Line: ", x, "length: ", geom.length())
        #     else:
        #         x = geom.asMultiPolyline()
        #         print("MultiLine: ", x, "length: ", geom.length())
        # elif geom.type() == QgsWkbTypes.PolygonGeometry:
        #     if geomSingleType:
        #         x = geom.asPolygon()
        #         print("Polygon: ", x, "Area: ", geom.area())
        #     else:
        #         x = geom.asMultiPolygon()
        #         print("MultiPolygon: ", x, "Area: ", geom.area())
        # else:
        #     print("Unknown or invalid geometry")
        # fetch attributes
        attrz += [feature.attributes()]
        # attrs is a list. It contains all the attribute values of this feature
        #print(attrs)
    attr = pd.DataFrame(attrz,columns = fldz)
    return attr
print(getAttem())