Drupal 9 Deprecated Code Report

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Line identification.module
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27 Call to deprecated function db_select():
as of Drupal 8.0.x, will be removed in Drupal 9.0.0. Instead, get
a database connection injected into your service from the container and
call select() on it. For example,
54 Call to deprecated function db_select():
as of Drupal 8.0.x, will be removed in Drupal 9.0.0. Instead, get
a database connection injected into your service from the container and
call select() on it. For example,
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Line src/Form/IdentificationConfigForm.php
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40 Call to deprecated method l() of class Drupal:
in Drupal 8.0.0 and will be removed before Drupal 9.0.0.
Use \Drupal\Core\Link instead.
Example:
56 Call to deprecated method entityManager() of class Drupal:
in Drupal 8.0.0 and will be removed before Drupal 9.0.0.
Use \Drupal::entityTypeManager() instead in most cases. If the needed
method is not on \Drupal\Core\Entity\EntityTypeManagerInterface, see the
deprecated \Drupal\Core\Entity\EntityManager to find the
correct interface or service.
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[ERROR] Found 4 errors