code: def make_forest(data, n_neighbors, n_trees, rng_state, angular=False):
      
      result = []
      leaf_size = max(10, n_neighbors)
      try:
          result = [
              flatten_tree(make_tree(data, rng_state, leaf_size, angular), leaf_size)
              for i in range(n_trees)
          ]
      except (RuntimeError, RecursionError, SystemError):
          warn(
              "Random Projection forest initialisation failed due to recursion"
              "limit being reached. Something is a little strange with your "
              "data, and this may take longer than normal to compute."
          )
  
      return result
docs: Build a random projection forest with ``n_trees``.
  
      Parameters
      ----------
      data
      n_neighbors
      n_trees
      rng_state
      angular
  
      Returns
      -------
      forest: list
          A list of random projection trees.