docstr: Test PyUnicode_IsIdentifier()
docstr_tok: ["Test","PyUnicode_IsIdentifier","(",")"]
code: def test_isidentifier(self):
      """Test PyUnicode_IsIdentifier()"""
      from _testcapi import unicode_isidentifier as isidentifier
  
      self.assertEqual(isidentifier("a"), 1)
      self.assertEqual(isidentifier("b0"), 1)
      self.assertEqual(isidentifier("µ"), 1)
      self.assertEqual(isidentifier("𝔘𝔫𝔦𝔠𝔬𝔡𝔢"), 1)
  
      self.assertEqual(isidentifier(""), 0)
      self.assertEqual(isidentifier(" "), 0)
      self.assertEqual(isidentifier("["), 0)
      self.assertEqual(isidentifier("©"), 0)
      self.assertEqual(isidentifier("0"), 0)
      self.assertEqual(isidentifier("32M"), 0)
  
imports: import unittest
  import sys
  from test import support
  from test.support import import_helper
label_desc: Use image node_id 47 for calling the CAPITest obj's underlying member method code with example usage: obj.test_isidentifier() without return types