one module maybe lead to another’s Namespace pollution?

[xflywind]

hello, I’m a beginer. when I import complex module and arraymancer module like 
this.
    
    
    import arraymancer, fft, utils
    import complex
    
    let s: Tensor[float] = hamming[float](1024)
    var data = fft(s).map(abs)
    write_npy(data, "hanning_fft.npy")
    
    
    Run

I got these errors.I know some converters in arraymancer, so uint64 will be 
converted to Complex, so the signature of this two function , namely $, may be 
the same.I am not sure.
    
    
    /root/.nimble/pkgs/arraymancer-0.5.2/io/io_npy.nim(172, 22) Error: 
ambiguous call; both system.$(x: uint64) [declared in 
/root/.choosenim/toolchains/nim-#devel/lib/system/strmantle.nim(288, 6)] and 
complex.$(z: Complex) [declared in 
/root/.choosenim/toolchains/nim-#devel/lib/pure/complex.nim(344, 6)] match for: 
(byte)
    
    
    Run

I fix this when I only import abs from complex.
    
    
    import arraymancer, fft, utils
    from complex import abs
    
    
    let s: Tensor[float] = hamming[float](1024)
    var data = fft(s).map(abs)
    write_npy(data, "hanning_fft.npy")
    
    
    Run

I want to know whether one module maybe lead to another’s Namespace pollution.