TypeHintWaring when calling get_struct() method

[apkrelling]

• ASTx version: 0.15.0
• Python version: 3.12.7
• Operating System: Ubuntu 22.04

Description

Whenever the get struct() method gets called (I'm not sure if it's just this method or also others), I get some TypeHintWarnings, plus the expected output. This seems to have happened after merge of the PR #127 .

Code example:

from astx.packages import AliasExpr, ImportExpr

alias1 = AliasExpr(name="math")
alias2 = AliasExpr(name="matplotlib", asname="mtlb")

# Create an import statement
import_stmt = ImportStmt(names=[alias1, alias2])

import_stmt.get_struct()

output:

/home/anapaula/git_repos/astx/src/astx/base.py:209: TypeHintWarning: Cannot resolve forward reference 'astx.base.Undefined'
  return cast(ReprStruct, metadata)
/home/anapaula/git_repos/astx/src/astx/base.py:223: TypeHintWarning: Cannot resolve forward reference 'astx.base.Undefined'
  return cast(ReprStruct, struct)
/home/anapaula/git_repos/astx/src/astx/packages.py:193: TypeHintWarning: Cannot resolve forward reference 'astx.base.Undefined'
  return self._prepare_struct(key, value, simplified)
/home/anapaula/git_repos/astx/src/astx/base.py:211: TypeHintWarning: Cannot resolve forward reference 'astx.base.Undefined'
  def _prepare_struct(
/home/anapaula/git_repos/astx/src/astx/packages.py:224: TypeHintWarning: Cannot resolve forward reference 'astx.base.Undefined'
  return self._prepare_struct(key, value, simplified)

{'ImportStmt': {'content': [{'Alias [math]': {'content': '',
     'metadata': {'loc': {line: -1, col: -1},
      'comment': '',
      'ref': '',
      'kind': <ASTKind.AliasExprKind: -702>}}},
   {'Alias [matplotlib, mtlb]': {'content': '',
     'metadata': {'loc': {line: -1, col: -1},
      'comment': '',
      'ref': '',
      'kind': <ASTKind.AliasExprKind: -702>}}}],
  'metadata': {'loc': {line: -1, col: -1},
   'comment': '',
   'ref': '',
   'kind': <ASTKind.ImportStmtKind: -700>}}}