Better validations and helper methods for UDFs
Better validations and helper methods for UDFs

RickMohr/otm-core,RickMohr/otm-core,clever-crow-consulting/otm-core,recklessromeo/otm-core,clever-crow-consulting/otm-core,recklessromeo/otm-core,maurizi/otm-core,clever-crow-consulting/otm-core,clever-crow-consulting/otm-core,RickMohr/otm-core,recklessromeo/otm-core,RickMohr/otm-core,maurizi/otm-core,maurizi/otm-core,recklessromeo/otm-core,maurizi/otm-core