code: def test_float_vector_array_plain(self):
      tensor = self.float_vector.process(
          [
              self.float_vector.preprocess(
                  "0.64840776 0.7575,0.5531,    0.2403,0,0.9481,0,0.1538,0.2403"
              )
          ]
      )
      self.assertEqual(tensor[0][0], 0.64840776)
      self.assertEqual(tensor[0][1], 0.7575)  # Test space separation
      self.assertEqual(tensor[0][2], 0.5531)  # Test comma separation
      self.assertEqual(tensor[0][9], 0.0)
  
file_path: pytext/pytext/fields/test/field_test.py
imports: import unittest
  from pytext.fields.field import FloatVectorField
label_desc: Use image node_id 3 for calling the FieldTest obj's underlying member method code with example usage: obj.test_float_vector_array_plain() without return types