question: return messageinterpolator implementation used for configuration . concode_field_sep ParameterNameProvider parameterNameProvider concode_elem_sep MessageInterpolator messageInterpolator concode_elem_sep ConstraintValidatorFactory constraintValidatorFactory concode_elem_sep TraversableResolver traversableResolver concode_field_sep ConstraintValidatorFactory getConstraintValidatorFactory concode_elem_sep ValidationConfig parameterNameProvider concode_elem_sep TraversableResolver getTraversableResolver concode_elem_sep ValidationConfig messageInterpolator concode_elem_sep ValidationConfig constraintValidatorFactory concode_elem_sep ValidationConfig traversableResolver concode_elem_sep ParameterNameProvider getParameterNameProvider
target: MessageInterpolator function ( ) { return messageInterpolator ; }