def aaa():
    # trick sphinx to build link in doc
    pass

# retired
ibmqx2_c_to_tars =\
{
    0: [1, 2],
    1: [2],
    2: [],
    3: [2, 4],
    4: [2]
}  # 6 edges

# retired
ibmqx4_c_to_tars =\
{
    0: [],
    1: [0],
    2: [0, 1, 4],
    3: [2, 4],
    4: []
}  # 6 edges

# retired
ibmq16Rus_c_to_tars = \
{
    0: [],
    1: [0, 2],
    2: [3],
    3: [4, 14],
    4: [],
    5: [4],
    6: [5, 7, 11],
    7: [10],
    8: [7],
    9: [8, 10],
    10: [],
    11: [10],
    12: [5, 11, 13],
    13: [4, 14],
    14: [],
    15: [0, 2, 14]
}  # 22 edges

ibm20AustinTokyo_c_to_tars = \
{
    0: [1, 5],
    1: [0, 2, 6, 7],
    2: [1, 3, 6, 7],
    3: [2, 4, 8, 9],
    4: [3, 8, 9],
    5: [0, 6, 10, 11],
    6: [1, 2, 5, 7, 10, 11],
    7: [1, 2, 6, 8, 12, 13],
    8: [3, 4, 7, 9, 12, 13],
    9: [3, 4, 8, 14],
    10: [5, 6, 11, 15],
    11: [5, 6, 10, 12, 16, 17],
    12: [7, 8, 11, 13, 16, 17],
    13: [7, 8, 12, 14, 18, 19],
    14: [9, 13, 18, 19],
    15: [10, 16],
    16: [11, 12, 15, 17],
    17: [11, 12, 16, 18],
    18: [13, 14, 17, 19],
    19: [13, 14, 18]
}  # 86 edges

ibmq5YorktownTenerife_c_to_tars = \
{
    0: [1, 2],
    1: [0, 2],
    2: [0, 1, 3, 4],
    3: [2, 4],
    4: [2, 3]
}  # 12 edges

ibmq14Melb_c_to_tars = \
{
    0: [1],
    1: [0, 2, 13],
    2: [1, 3, 12],
    3: [2, 4, 11],
    4: [3, 5, 10],
    5: [4, 6, 9],
    6: [5, 8],
    7: [8],
    8: [6, 7, 9],
    9: [5, 8, 10],
    10: [4, 9, 11],
    11: [3, 10, 12],
    12: [2, 11, 13],
    13: [1, 12]
}  # 36 edges

[]