如何从pyspark SparseVector中获取密钥

from pyspark.ml.linalg import SparseVector

# 创建一个SparseVector实例
sparse_vector = SparseVector(5, [0, 2, 4], [1.0, 2.0, 3.0])

# 获取非零元素的索引
indices = sparse_vector.indices
print("Indices:", indices)

# 获取非零元素的值
values = sparse_vector.values
print("Values:", values)

Indices: [0, 2, 4]
Values: [1.0, 2.0, 3.0]