Setting boost compilation options in conanfile.py

Question

I've got the following structure of conanfile.py for the purpose of installing boost in my macOS build machine. Apparently some boost components are not supported in this platform and should be omitted according to this post. Thus I need to apply the following settings. However, this is how they are configured in conanfile.txt, and I'm already working with conanfile.py, so I need to find the equivalent python code to this settings :

[options]
boost/*:with_stacktrace_backtrace=False
boost/*:without_locale=True

and here's my attempt to apply this configuration in conanfile.py.

from conan2 import ConanFile

class BoostExampleConan(ConanFile):
    name = "BoostExample"
    version = "1.0"
    settings = "os", "compiler", "build_type", "arch"
    requires = "boost/1.83.0"  
    generators = "CMakeDeps", "CMakeToolchain"
    default_options = {
        "boost:header_only": False
-->     "boost:with_stacktrace_backtrace"=False
-->     "boost:without_locale"=True
    }

    def layout(self):
        self.folders.source = "."
        self.folders.build = "build"

However, I still get the following error :

boost/1.83.0: WARN: Boost component 'locale' is missing libraries. Try building boost with '-o boost:without_locale'. (Option is not guaranteed to exist)
boost/1.83.0: WARN: Boost component 'stacktrace_addr2line' is missing libraries. Try building boost with '-o boost:without_stacktrace_addr2line'. (Option is not guaranteed to exist)
boost/1.83.0: WARN: Boost component 'stacktrace_backtrace' is missing libraries. Try building boost with '-o boost:without_stacktrace_backtrace'. (Option is not guaranteed to exist)
ERROR: boost/1.83.0: Error in package_info() method, line 2011
    raise ConanException(f"These libraries were expected to be built, but were not built: {non_built}")
    ConanException: These libraries were expected to be built, but were not built: {'boost_locale', 'boost_stacktrace_backtrace', 'boost_stacktrace_addr2line'}