code: def vander(x, N=None, increasing=False):
      if ivy.is_float_dtype(x):
          x = x.astype(ivy.float64)
      elif ivy.is_bool_dtype or ivy.is_int_dtype(x):
          x = x.astype(ivy.int64)
      return ivy.vander(x, N=N, increasing=increasing)
  
file_path: ivy/ivy/functional/frontends/numpy/creation_routines/building_matrices.py
imports: import ivy
  from ivy.functional.frontends.numpy.func_wrapper import to_ivy_arrays_and_back, handle_numpy_dtype
label_desc: Use image node_id 6 for calling a global function with example usage: vander(x, N, increasing) and returns: ivy