GetArtifact.
        Gets a specific artifact for a build.
        :param str project: Project ID or project name
        :param int build_id: The ID of the build.
        :param str artifact_name: The name of the artifact.
        :rtype: :class:`<BuildArtifact> <azure.devops.v5_0.build.models.BuildArtifact>`

def get_artifact(self, project, build_id, artifact_name):
        """GetArtifact.
        Gets a specific artifact for a build.
        :param str project: Project ID or project name
        :param int build_id: The ID of the build.
        :param str artifact_name: The name of the artifact.
        :rtype: :class:`<BuildArtifact> <azure.devops.v5_0.build.models.BuildArtifact>`
        """
        route_values = {}
        if project is not None:
            route_values['project'] = self._serialize.url('project', project, 'str')
        if build_id is not None:
            route_values['buildId'] = self._serialize.url('build_id', build_id, 'int')
        query_parameters = {}
        if artifact_name is not None:
            query_parameters['artifactName'] = self._serialize.query('artifact_name', artifact_name, 'str')
        response = self._send(http_method='GET',
                              location_id='1db06c96-014e-44e1-ac91-90b2d4b3e984',
                              version='5.0',
                              route_values=route_values,
                              query_parameters=query_parameters)
        return self._deserialize('BuildArtifact', response)