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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 is_team_member(name, team_name, profile="github"):
    '''
    Returns True if the github user is in the team with team_name, or False
    otherwise.

    name
        The name of the user whose membership to check.

    team_name
        The name of the team to check membership in.

    profile
        The name of the profile configuration to use. Defaults to ``github``.

    CLI Example:

    .. code-block:: bash

        salt myminion github.is_team_member 'user_name' 'team_name'

    .. versionadded:: 2016.11.0
    '''
    return name.lower() in list_team_members(team_name, profile=profile)