from glider import *
def query():
# Create a Convertor object
convertor = Convertor()
# Add a conversion from address to bytes20
convertor.add("address", "bytes20")
# Returns true
print(convertor.can_convert("address", "bytes20"))
# Returns false as conversion from address to uint160 was not added
print(convertor.can_convert("address", "uint160"))
return []