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# 4.6. CRD topology parser

Read a list of atoms from a CHARMM CARD coordinate file (CRD) to build a basic topology.

Atom types and masses are guessed.

`MDAnalysis.topology.CRDParser.``parse`(filename)

  Parse CRD file filename and return the dict structure.

  Only reads the list of atoms.

  Returns : | MDAnalysis internal structure dict

  See also

  The structure dict is defined in `MDAnalysis.topology.PSFParser.parse()`.

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