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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def check_archs(copied_libs, require_archs=(), stop_fast=False):
 """ Check compatibility of archs in `copied_libs` dict Parameters copied_libs : dict dict containing the (key, value) pairs of (``copied_lib_path``, ``dependings_dict``), where ``copied_lib_path`` is a library real path that has been copied during delocation, and ``dependings_dict`` is a dictionary with key, value pairs where the key is a path in the target being delocated (a wheel or path) depending on ``copied_lib_path``, and the value is the ``install_name`` of ``copied_lib_path`` in the depending library. require_archs : str or sequence, optional Architectures we require to be present in all library files in wheel. If an empty sequence, just check that depended libraries do have the architectures of the depending libraries, with no constraints on what these architectures are. If a sequence, then a set of required architectures e.g. ``['i386', 'x86_64']`` to specify dual Intel architectures. If a string, then a standard architecture name as returned by ``lipo -info`` or the string "intel", corresponding to the sequence ``['i386', 'x86_64']`` stop_fast : bool, optional Whether to give up collecting errors after the first Returns ------- bads : set set of length 2 or 3 tuples. A length 2 tuple is of form ``(depending_lib, missing_archs)`` meaning that an arch in `require_archs` was missing from ``depending_lib``. A length 3 tuple is of form ``(depended_lib, depending_lib, missing_archs)`` where ``depended_lib`` is the filename of the library depended on, ``depending_lib`` is the library depending on ``depending_lib`` and ``missing_archs`` is a set of missing architecture strings giving architectures present in ``depending_lib`` and missing in ``depended_lib``. An empty set means all architectures were present as required. """

    if isinstance(require_archs, string_types):
        require_archs = (['i386', 'x86_64'] if require_archs == 'intel'
                         else [require_archs])
    require_archs = frozenset(require_archs)
    bads = []
    for depended_lib, dep_dict in copied_libs.items():
        depended_archs = get_archs(depended_lib)
        for depending_lib, install_name in dep_dict.items():
            depending_archs = get_archs(depending_lib)
            all_required = depending_archs | require_archs
            all_missing = all_required.difference(depended_archs)
            if len(all_missing) == 0:
                continue
            required_missing = require_archs.difference(depended_archs)
            if len(required_missing):
                bads.append((depending_lib, required_missing))
            else:
                bads.append((depended_lib, depending_lib, all_missing))
            if stop_fast:
                return set(bads)
    return set(bads)