class_docstr: A utility class for manipulating the UMLS Semantic Type Hierarchy.
  Designed to be constructed from a TSV file using `construct_umls_tree_from_tsv`.
class_docstr_tok: ["A","utility","class","for","manipulating","the","UMLS","Semantic","Type","Hierarchy",".","Designed","to","be","constructed","from","a","TSV","file","using","`","construct_umls_tree_from_tsv","`","."]
docstr: Returns nodes at a particular depth in the tree.
docstr_tok: ["Returns","nodes","at","a","particular","depth","in","the","tree","."]
code: def get_nodes_at_depth(self, level: int) -> List[SemanticTypeNode]:
      """
      Returns nodes at a particular depth in the tree.
      """
      return [node for node in self.flat_nodes if node.level == level]
  
file_path: scispacy/scispacy/umls_semantic_type_tree.py
imports: from typing import NamedTuple, List, Dict, Deque, Any, Optional
  from collections import deque
  from scispacy.file_cache import cached_path
label_desc: Use image node_id 4 for calling the UmlsSemanticTypeTree obj's underlying member method code with example usage: obj.get_nodes_at_depth(level) and returns: unknown