code: def from_row_lengths(cls, values, row_lengths):
      ivy_arrays = []
      for i in range(len(row_lengths)):
          ivy_arrays.append(values[: row_lengths[i]])
          values = values[row_lengths[i] :]
      return cls.nested_array(ivy_arrays)
  
imports: from .base import NestedArrayBase
label_desc: Use image node_id 2 for calling the NestedArray obj's underlying member method code with example usage: obj.from_row_lengths(cls, values, row_lengths) and returns: cls