Get all cores:

core_data= spacexpython.cores.cores()
print(core_data)

Get information about one core:

core_data= spacexpython.cores.one('B1042')
print(core_data)

Get all upcoming cores:

core_data= spacexpython.cores.upcoming()
print(core_data)

Get past cores:

core_data= spacexpython.cores.past()
print(core_data)

For optional parameters (must be included in a JSON document)- see the documentation