bpy.ops.geometry

def attribute_convert_normals(*, data_type):

Convert Normals
Converts the data type of the normals attribute
data_type: bpy.ops.attribute_convert_normals.data_type_enum'FLOAT_COLOR'
Data Type

def attribute_from_custom_normals(*, data_type):

From Custom Normals
Creates a new attribute from the custom split normals
data_type: bpy.ops.attribute_from_custom_normals.data_type_enum'FLOAT_COLOR'
Data Type