https://api.drupal.org/api/drupal/10/search/setDefaultValue
Search for setDefaultValue | Drupal API
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https://api.drupal.org/api/drupal/core%21lib%21Drupal%21Core%21Field%21BaseFieldDefinition.php/function/BaseFieldDefinition%3A%3AsetDefaultValue/11.x
function BaseFieldDefinition::setDefaultValue | Drupal API
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https://api.drupal.org/api/drupal/core%21lib%21Drupal%21Core%21Field%21FieldConfigInterface.php/function/FieldConfigInterface%3A%3AsetDefaultValue/9
function FieldConfigInterface::setDefaultValue | Drupal API
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