How to use the invocations.travis function in invocations

# test() instead of hardcoding its own test or doing it this way with an
    # arg.
    return coverage_(c, report=report, opts=opts, tester=test)


ns = Collection(
    test,
    coverage,
    integration,
    vendorize,
    release,
    www,
    docs,
    sites,
    watch_docs,
    travis,
    checks.blacken,
)
ns.configure(
    {
        "blacken": {
            # Skip the vendor directory and the (Travis-only) alt venv when
            # blackening.
            # TODO: this is making it seem like I really do want an explicit
            # arg/conf-opt in the blacken task for "excluded paths"...ha
            "find_opts": "-and -not \( -path './invoke/vendor*' -or -path './alt_env*' -or -path './build*' \)"  # noqa
        },
        "tests": {"logformat": LOG_FORMAT, "package": "invoke"},
        "travis": {
            "sudo": {"user": "sudouser", "password": "mypass"},
            "black": {"version": "18.6b4"},
        },

from os.path import join

from invocations import docs, checks, travis
from invocations.pytest import test, integration
from invocations.packaging import release

from invoke import Collection


ns = Collection(test, integration, release, docs, travis, checks.blacken)
ns.configure(
    {
        "travis": {"black": {"version": "18.6b4"}},
        "packaging": {
            "sign": True,
            "wheel": True,
            "changelog_file": join(
                docs.ns.configuration()["sphinx"]["source"], "changelog.rst"
            ),

from invoke import Collection, task


@task
def sanity(c):
    """
    Quick sanity check to ensure we're installed successfully. Mostly for CI.
    """
    # Doesn't need to literally import everything, but "a handful" will do.
    for name in ("environment", "files", "transfers"):
        mod = "patchwork.{}".format(name)
        import_module(mod)
        print("Imported {} successfully".format(mod))


ns = Collection(docs, release, travis, test, coverage, sanity, blacken)
ns.configure(
    {
        "packaging": {
            "sign": True,
            "wheel": True,
            "check_desc": True,
            "changelog_file": "docs/changelog.rst",
        }

from invoke import Collection

from invocations import docs, travis
from invocations.packaging import release
from invocations.pytest import test, coverage


ns = Collection(release, test, coverage, docs, travis)
ns.configure(
    {
        "packaging": {"sign": True, "wheel": True},
        "run": {
            "env": {
                # Our ANSI color tests test against hardcoded codes appropriate
                # for this terminal, for now.
                "TERM": "xterm-256color"
            }

# Better than nothing, since we haven't solved "pretend I have some other
# task's signature" yet...
publish.__doc__ = release.publish.__doc__
my_release = Collection(
    "release", release.build, release.status, publish, release.prepare
)

ns = Collection(
    blacken,
    coverage,
    docs,
    integration,
    my_release,
    sites,
    test,
    travis,
    watch_docs,
    www,
)
ns.configure(
    {
        "tests": {
            # TODO: have pytest tasks honor these?
            "package": "fabric",
            "logformat": LOG_FORMAT,
        },
        "packaging": {
            # NOTE: this is currently for identifying the source directory.
            # Should it get used for actual releasing, needs changing.
            "package": "fabric",
            "sign": True,
            "wheel": True,