# Boolean converter

from pip_services4_commons.convert import BooleanConverter

value1 = BooleanConverter.to_boolean("yes")            # Returns True
value2 = BooleanConverter.to_boolean_with_default(True, False)     # Returns True   
value3 = BooleanConverter.to_boolean_with_default(123, False)      # Returns False
value4 = BooleanConverter.to_nullable_boolean(True)    # Returns True
value5 = BooleanConverter.to_nullable_boolean("yes")   # Returns True
value6 = BooleanConverter.to_nullable_boolean(123)     # Returns None
value7 = BooleanConverter.to_nullable_boolean({})      # Returns None