Read inputs of Report Lambda

The following example shows how to read inputs from a report lambda program. 

 mesh_entity = vf.input_entity("mesh_entity_id", "Entity", vf.type.voxel_mesh)

string_input = vf.input_string("string_input", "String Input", "")

numerical_input = vf.input("numerical_input", "Numerical Input", 0.0)