8 files declare their use of ContentHubRequirementBase in Acquia Content Hub 8

ContribModuleVersionRequirement.php in acquia_contenthub_diagnostic/src/Plugin/ContentHubRequirement/ContribModuleVersionRequirement.php

CoreVersionRequirement.php in acquia_contenthub_diagnostic/src/Plugin/ContentHubRequirement/CoreVersionRequirement.php

DiagnosticsInstalledWarning.php in acquia_contenthub_diagnostic/src/Plugin/ContentHubRequirement/DiagnosticsInstalledWarning.php

EndpointAccessibilityRequirement.php in acquia_contenthub_diagnostic/src/Plugin/ContentHubRequirement/EndpointAccessibilityRequirement.php

HashSaltRequirement.php in acquia_contenthub_diagnostic/src/Plugin/ContentHubRequirement/HashSaltRequirement.php

InvalidCertificatesRequirement.php in acquia_contenthub_diagnostic/src/Plugin/ContentHubRequirement/InvalidCertificatesRequirement.php

ModuleCompatibilityRequirement.php in acquia_contenthub_diagnostic/src/Plugin/ContentHubRequirement/ModuleCompatibilityRequirement.php

SharedSecretRequirement.php in acquia_contenthub_diagnostic/src/Plugin/ContentHubRequirement/SharedSecretRequirement.php